// Reorder a file based on directives starting with ':(' (tangle directives).
// Insert #line directives to preserve line numbers in the original.
// Clear lines starting with '//:' (tangle comments).
size_t Line_number = 0;
string Filename;
int tangle(int argc, const char* argv[]) {
list<string> result;
for (int i = 1; i < argc; ++i) {
ifstream in(argv[i]);
Filename = argv[i];
tangle(in, result);
}
for (list<string>::iterator p = result.begin(); p != result.end(); ++p)
cout << *p << '\n';
return 0;
}
void tangle(istream& in, list<string>& out) {
Line_number = 1;
out.push_back(line_directive(Line_number, Filename));
string curr_line;
while (!in.eof()) {
getline(in, curr_line);
Line_number++;
if (starts_with(curr_line, ":("))
process_next_hunk(in, trim(curr_line), out);
else
out.push_back(curr_line);
}
for (list<string>::iterator p = out.begin(); p != out.end(); ++p) {
if (starts_with(*p, "//:"))
p->clear(); // leave the empty lines around so as to not mess up #line numbers
}
trace_all("tangle", out);
}
string Toplevel = "run";
void process_next_hunk(istream& in, const string& directive, list<string>& out) {
list<string> hunk;
hunk.push_back(line_directive(Line_number, Filename));
string curr_line;
while (!in.eof()) {
std::streampos old = in.tellg();
getline(in, curr_line);
if (starts_with(curr_line, ":(")) {
in.seekg(old);
break;
}
else {
++Line_number;
hunk.push_back(curr_line);
}
}
istringstream directive_stream(directive.substr(2)); // length of ":("
string cmd = next_tangle_token(directive_stream);
if (cmd == "code") {
out.insert(out.end(), hunk.begin(), hunk.end());
return;
}
if (cmd == "scenarios") {
Toplevel = next_tangle_token(directive_stream);
return;
}
if (cmd == "scenario") {
list<string> result;
string name = next_tangle_token(directive_stream);
result.push_back(hunk.front()); // line number directive
hunk.pop_front();
emit_test(name, hunk, result);
out.insert(out.end(), result.begin(), result.end());
return;
}
if (cmd == "before" || cmd == "after" || cmd == "replace" || cmd == "replace{}" || cmd == "delete" || cmd == "delete{}") {
list<string>::iterator target = locate_target(out, directive_stream);
if (target == out.end()) {
raise << "Couldn't find target " << directive << '\n' << die();
return;
}
size_t end_line_number = 0;
string end_filename;
scan_up_to_last_line_directive(target, out.begin(), end_line_number, end_filename);
indent_all(hunk, target);
if (cmd == "before") {
hunk.push_back(line_directive(end_line_number, end_filename));
out.splice(target, hunk);
}
else if (cmd == "after") {
++end_line_number;
hunk.push_back(line_directive(end_line_number, end_filename));
++target;
out.splice(target, hunk);
}
else if (cmd == "replace" || cmd == "delete") {
hunk.push_back(line_directive(end_line_number, end_filename));
out.splice(target, hunk);
out.erase(target);
}
else if (cmd == "replace{}" || cmd == "delete{}") {
hunk.push_back(line_directive(end_line_number, end_filename));
if (find_trim(hunk, ":OLD_CONTENTS") == hunk.end()) {
out.splice(target, hunk);
out.erase(target, balancing_curly(target));
}
else {
list<string>::iterator next = balancing_curly(target);
list<string> old_version;
old_version.splice(old_version.begin(), out, target, next);
old_version.pop_back(); old_version.pop_front(); // contents only please, not surrounding curlies
list<string>::iterator new_pos = find_trim(hunk, ":OLD_CONTENTS");
indent_all(old_version, new_pos);
hunk.splice(new_pos, old_version);
hunk.erase(new_pos);
out.splice(next, hunk);
}
}
return;
}
raise << "unknown directive " << cmd << '\n';
}
list<string>::iterator locate_target(list<string>& out, istream& directive_stream) {
string pat = next_tangle_token(directive_stream);
if (pat == "") return out.end();
string next_token = next_tangle_token(directive_stream);
if (next_token == "") {
return find_substr(out, pat);
}
// first way to do nested pattern: pattern 'following' intermediate
else if (next_token == "following") {
string pat2 = next_tangle_token(directive_stream);
if (pat2 == "") return out.end();
list<string>::iterator intermediate = find_substr(out, pat2);
if (intermediate == out.end()) return out.end();
return find_substr(out, intermediate, pat);
}
// second way to do nested pattern: intermediate 'then' pattern
else if (next_token == "then") {
list<string>::iterator intermediate = find_substr(out, pat);
if (intermediate == out.end()) return out.end();
string pat2 = next_tangle_token(directive_stream);
if (pat2 == "") return out.end();
return find_substr(out, intermediate, pat2);
}
raise << "unknown keyword in directive: " << next_token << '\n';
return out.end();
}
// indent all lines in l like indentation at exemplar
void indent_all(list<string>& l, list<string>::iterator exemplar) {
string curr_indent = indent(*exemplar);
for (list<string>::iterator p = l.begin(); p != l.end(); ++p)
if (!p->empty())
p->insert(p->begin(), curr_indent.begin(), curr_indent.end());
}
string next_tangle_token(istream& in) {
in >> std::noskipws;
ostringstream out;
skip_whitespace(in);
if (in.peek() == '"')
slurp_tangle_string(in, out);
else
slurp_word(in, out);
return out.str();
}
void slurp_tangle_string(istream& in, ostream& out) {
in.get();
char c;
while (in >> c) {
if (c == '\\') // only works for double-quotes
continue;
if (c == '"')
break;
out << c;
}
}
void slurp_word(istream& in, ostream& out) {
char c;
while (in >> c) {
if (isspace(c) || c == ')') {
in.putback(c);
break;
}
out << c;
}
}
void skip_whitespace(istream& in) {
while (isspace(in.peek()))
in.get();
}
list<string>::iterator balancing_curly(list<string>::iterator orig) {
list<string>::iterator curr = orig;
long open_curlies = 0;
do {
for (string::iterator p = curr->begin(); p != curr->end(); ++p) {
if (*p == '{') ++open_curlies;
if (*p == '}') --open_curlies;
}
++curr;
// no guard so far against unbalanced curly
} while (open_curlies != 0);
return curr;
}
// A scenario is one or more sessions separated by calls to CLEAR_TRACE ('===')
// A session is one or more lines of input
// followed by a return value ('=>')
// followed by one or more lines expected in trace in order ('+')
// followed by one or more lines trace shouldn't include ('-')
// Remember to update is_input below if you add to this format.
void emit_test(const string& name, list<string>& lines, list<string>& result) {
result.push_back("TEST("+name+")");
while (any_non_input_line(lines)) {
if (is_warn(lines.front())) {
result.push_back(" Hide_warnings = true;");
lines.pop_front();
}
result.push_back(" "+Toplevel+"(\""+input_lines(lines)+"\");");
if (!lines.empty() && lines.front()[0] == '+')
result.push_back(" CHECK_TRACE_CONTENTS(\""+expected_in_trace(lines)+"\");");
while (!lines.empty() && lines.front()[0] == '-') {
result.push_back(" CHECK_TRACE_DOESNT_CONTAIN(\""+expected_not_in_trace(lines.front())+"\");");
lines.pop_front();
}
if (!lines.empty() && lines.front() == "===") {
result.push_back(" CLEAR_TRACE;");
lines.pop_front();
}
if (!lines.empty() && lines.front() == "?") {
result.push_back(" DUMP(\"\");");
lines.pop_front();
}
}
result.push_back("}");
while (!lines.empty() &&
(trim(lines.front()).empty() || starts_with(lines.front(), "//")))
lines.pop_front();
if (!lines.empty()) {
cerr << lines.size() << " unprocessed lines in scenario.\n";
exit(1);
}
}
bool is_input(const string& line) {
return line != "===" && line[0] != '+' && line[0] != '-' && !starts_with(line, "=>");
}
bool is_warn(const string& line) {
return line == "hide warnings";
}
string input_lines(list<string>& hunk) {
string result;
while (!hunk.empty() && is_input(hunk.front())) {
result += hunk.front()+""; // temporary delimiter; replace with escaped newline after escaping other backslashes
hunk.pop_front();
}
return escape(result);
}
string expected_in_trace(list<string>& hunk) {
string result;
while (!hunk.empty() && hunk.front()[0] == '+') {
hunk.front().erase(0, 1);
result += hunk.front()+"";
hunk.pop_front();
}
return escape(result);
}
string expected_not_in_trace(const string& line) {
return escape(line.substr(1));
}
list<string>::iterator find_substr(list<string>& in, const string& pat) {
for (list<string>::iterator p = in.begin(); p != in.end(); ++p)
if (p->find(pat) != NOT_FOUND)
return p;
return in.end();
}
list<string>::iterator find_substr(list<string>& in, list<string>::iterator p, const string& pat) {
for (; p != in.end(); ++p)
if (p->find(pat) != NOT_FOUND)
return p;
return in.end();
}
list<string>::iterator find_trim(list<string>& in, const string& pat) {
for (list<string>::iterator p = in.begin(); p != in.end(); ++p)
if (trim(*p) == pat)
return p;
return in.end();
}
string escape(string s) {
s = replace_all(s, "\\", "\\\\");
s = replace_all(s, "\"", "\\\"");
s = replace_all(s, "", "\\n");
return s;
}
string replace_all(string s, const string& a, const string& b) {
for (size_t pos = s.find(a); pos != NOT_FOUND; pos = s.find(a, pos+b.size()))
s = s.replace(pos, a.size(), b);
return s;
}
bool any_line_starts_with(const list<string>& lines, const string& pat) {
for (list<string>::const_iterator p = lines.begin(); p != lines.end(); ++p)
if (starts_with(*p, pat)) return true;
return false;
}
bool any_non_input_line(const list<string>& lines) {
for (list<string>::const_iterator p = lines.begin(); p != lines.end(); ++p)
if (!is_input(*p)) return true;
return false;
}
// does s start with pat, after skipping whitespace?
// pat can't start with whitespace
bool starts_with(const string& s, const string& pat) {
for (size_t pos = 0; pos < s.size(); ++pos)
if (!isspace(s[pos]))
return s.compare(pos, pat.size(), pat) == 0;
return false;
}
string indent(const string& s) {
for (size_t pos = 0; pos < s.size(); ++pos)
if (!isspace(s[pos]))
return s.substr(0, pos);
return "";
}
string strip_indent(const string& s, size_t n) {
if (s.empty()) return "";
string::const_iterator curr = s.begin();
while (curr != s.end() && n > 0 && isspace(*curr)) {
++curr;
--n;
}
return string(curr, s.end());
}
string trim(const string& s) {
string::const_iterator first = s.begin();
while (first != s.end() && isspace(*first))
++first;
if (first == s.end()) return "";
string::const_iterator last = --s.end();
while (last != s.begin() && isspace(*last))
--last;
++last;
return string(first, last);
}
string line_directive(size_t line_number, string filename) {
ostringstream result;
if (filename.empty())
result << "#line " << line_number;
else
result << "#line " << line_number << " \"" << filename << '"';
return result.str();
}
void scan_up_to_last_line_directive(list<string>::iterator p, list<string>::iterator begin, size_t& line_number, string& filename) {
//? cout << "scan: " << *p << " until " << *begin << '\n'; //? 1
int delta = 0;
if (pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */# Some tokenization primitives.
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
# extract the next run of characters that are different from a given 'delimiter' (skipping multiple delimiters if necessary)
# on reaching end of file, return an empty interval
next-token: # in: (addr stream byte), delimiter: byte, out: (addr slice)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
56/push-esi
57/push-edi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0x10/disp8 . # copy *(ebp+16) to edi
# skip-chars-matching(in, delimiter)
# . . push args
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)
56/push-esi
# . . call
e8/call skip-chars-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# out->start = &in->data[in->read]
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/eax 0xc/disp8 . # copy esi+ecx+12 to eax
89/copy 0/mod/indirect 7/rm32/edi . . . 0/r32/eax . . # copy eax to *edi
# skip-chars-not-matching(in, delimiter)
# . . push args
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)
56/push-esi
# . . call
e8/call skip-chars-not-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# out->end = &in->data[in->read]
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/eax 0xc/disp8 . # copy esi+ecx+12 to eax
89/copy 1/mod/*+disp8 7/rm32/edi . . . 0/r32/eax 4/disp8 . # copy eax to *(edi+4)
# . restore registers
5f/pop-to-edi
5e/pop-to-esi
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx: slice
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# write(_test-stream, " ab")
# . . push args
68/push " ab"/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# next-token(_test-stream, 0x20/space, slice)
# . . push args
51/push-ecx
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call next-token/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(slice->start - _test-stream->data, 2, msg)
# . check-ints-equal(slice->start - _test-stream, 14, msg)
# . . push args
68/push "F - test-next-token: start"/imm32
68/push 0xe/imm32
# . . push slice->start - _test-stream
8b/copy 0/mod/indirect 1/rm32/ecx . . . 0/r32/eax . . # copy *ecx to eax
81 5/subop/subtract 3/mod/direct 0/rm32/eax . . . . . _test-stream/imm32 # subtract from eax
50/push-eax
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(slice->end - _test-stream->data, 4, msg)
# . check-ints-equal(slice->end - _test-stream, 16, msg)
# . . push args
68/push "F - test-next-token: end"/imm32
68/push 0x10/imm32
# . . push slice->end - _test-stream
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy *(ecx+4) to eax
81 5/subop/subtract 3/mod/direct 0/rm32/eax . . . . . _test-stream/imm32 # subtract from eax
50/push-eax
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token-Eof:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx: slice
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# write nothing to _test-stream
# next-token(_test-stream, 0x20/space, slice)
# . . push args
51/push-ecx
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call next-token/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(slice->end, slice->start, msg)
# . . push args
68/push "F - test-next-token-Eof"/imm32
ff 6/subop/push 1/mod/*+disp8 1/rm32/ecx . . . . 4/disp8 . # push *(ecx+4)
ff 6/subop/push 0/mod/indirect 1/rm32/ecx . . . . . . # push *ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
# extract the next run of characters that are different from a given 'delimiter' (skipping multiple delimiters if necessary)
# on reaching end of file, return an empty interval
next-token-from-slice: # start: (addr byte), end: (addr byte), delimiter: byte, out: (addr slice)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
52/push-edx
57/push-edi
# ecx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# edx = delimiter
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0x14/disp8 . # copy *(ebp+20) to edi
# eax = skip-chars-matching-in-slice(start, end, delimiter)
# . . push args
52/push-edx
51/push-ecx
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8)
# . . call
e8/call skip-chars-matching-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# out->start = eax
89/copy 0/mod/indirect 7/rm32/edi . . . 0/r32/eax . . # copy eax to *edi
# eax = skip-chars-not-matching-in-slice(eax, end, delimiter)
# . . push args
52/push-edx
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-not-matching-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# out->end = eax
89/copy 1/mod/*+disp8 7/rm32/edi . . . 0/r32/eax 4/disp8 . # copy eax to *(edi+4)
# . restore registers
5f/pop-to-edi
5a/pop-to-edx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token-from-slice:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# (eax..ecx) = " ab"
b8/copy-to-eax " ab"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var out/edi: slice
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
# next-token-from-slice(eax, ecx, 0x20/space, out)
# . . push args
57/push-edi
68/push 0x20/imm32
51/push-ecx
50/push-eax
# . . call
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# out->start should be at the 'a'
# . check-ints-equal(out->start - in->start, 2, msg)
# . . push args
68/push "F - test-next-token-from-slice: start"/imm32
68/push 2/imm32
# . . push out->start - in->start
8b/copy 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # copy *edi to ecx
2b/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# out->end should be after the 'b'
# check-ints-equal(out->end - in->start, 4, msg)
# . . push args
68/push "F - test-next-token-from-slice: end"/imm32
68/push 4/imm32
# . . push out->end - in->start
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
2b/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token-from-slice-Eof:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var out/edi: slice
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
# next-token-from-slice(0, 0, 0x20/space, out)
# . . push args
57/push-edi
68/push 0x20/imm32
68/push 0/imm32
68/push 0/imm32
# . . call
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# out should be empty
# . check-ints-equal(out->end - out->start, 0, msg)
# . . push args
68/push "F - test-next-token-from-slice-Eof"/imm32
68/push 0/imm32
# . . push out->start - in->start
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
2b/subtract 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # subtract *edi from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token-from-slice-nothing:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# (eax..ecx) = " "
b8/copy-to-eax " "/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var out/edi: slice
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
# next-token-from-slice(in, 0x20/space, out)
# . . push args
57/push-edi
68/push 0x20/imm32
51/push-ecx
50/push-eax
# . . call
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# out should be empty
# . check-ints-equal(out->end - out->start, 0, msg)
# . . push args
68/push "F - test-next-token-from-slice-Eof"/imm32
68/push 0/imm32
# . . push out->start - in->start
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
2b/subtract 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # subtract *edi from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
skip-chars-matching: # in: (addr stream byte), delimiter: byte
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
52/push-edx
53/push-ebx
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# ecx = in->read
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
# ebx = in->write
8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
# edx = delimiter
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
$skip-chars-matching:loop:
# if (in->read >= in->write) break
39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
7d/jump-if->= $skip-chars-matching:end/disp8
# eax = in->data[in->read]
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
# if (eax != delimiter) break
39/compare 3/mod/direct 0/rm32/eax . . . 2/r32/edx . . # compare eax and edx
75/jump-if-!= $skip-chars-matching:end/disp8
# ++in->read
41/increment-ecx
eb/jump $skip-chars-matching:loop/disp8
$skip-chars-matching:end:
# persist in->read
89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
# . restore registers
5e/pop-to-esi
5b/pop-to-ebx
5a/pop-to-edx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-matching:
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# write(_test-stream, " ab")
# . . push args
68/push " ab"/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# skip-chars-matching(_test-stream, 0x20/space)
# . . push args
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call skip-chars-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(_test-stream->read, 2, msg)
# . . push args
68/push "F - test-skip-chars-matching"/imm32
68/push 2/imm32
# . . push *_test-stream->read
b8/copy-to-eax _test-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
test-skip-chars-matching-none:
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# write(_test-stream, "ab")
# . . push args
68/push "ab"/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# skip-chars-matching(_test-stream, 0x20/space)
# . . push args
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call skip-chars-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(_test-stream->read, 0, msg)
# . . push args
68/push "F - test-skip-chars-matching-none"/imm32
68/push 0/imm32
# . . push *_test-stream->read
b8/copy-to-eax _test-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
skip-chars-matching-whitespace: # in: (addr stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
53/push-ebx
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# ecx = in->read
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
# ebx = in->write
8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
$skip-chars-matching-whitespace:loop:
# if (in->read >= in->write) break
39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
7d/jump-if->= $skip-chars-matching-whitespace:end/disp8
# eax = in->data[in->read]
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
# if (eax == ' ') goto body
3d/compare-eax-and 0x20/imm32/space
74/jump-if-= $skip-chars-matching-whitespace:body/disp8
# if (eax == '\n') goto body
3d/compare-eax-and 0x0a/imm32/newline
74/jump-if-= $skip-chars-matching-whitespace:body/disp8
# if (eax == '\t') goto body
3d/compare-eax-and 0x09/imm32/tab
74/jump-if-= $skip-chars-matching-whitespace:body/disp8
# if (eax != '\r') break
3d/compare-eax-and 0x0d/imm32/cr
75/jump-if-!= $skip-chars-matching-whitespace:end/disp8
$skip-chars-matching-whitespace:body:
# ++in->read
41/increment-ecx
eb/jump $skip-chars-matching-whitespace:loop/disp8
$skip-chars-matching-whitespace:end:
# persist in->read
89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
# . restore registers
5e/pop-to-esi
5b/pop-to-ebx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-matching-whitespace:
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# write(_test-stream, " \nab")
# . . push args
68/push " \nab"/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# skip-chars-matching-whitespace(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call skip-chars-matching-whitespace/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(_test-stream->read, 2, msg)
# . . push args
68/push "F - test-skip-chars-matching-whitespace"/imm32
68/push 2/imm32
# . . push *_test-stream->read
b8/copy-to-eax _test-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
# minor fork of 'skip-chars-matching'
skip-chars-not-matching: # in: (addr stream byte), delimiter: byte
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
52/push-edx
53/push-ebx
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# ecx = in->read
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
# ebx = in->write
8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
# edx = delimiter
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
$skip-chars-not-matching:loop:
# if (in->read >= in->write) break
39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
7d/jump-if->= $skip-chars-not-matching:end/disp8
# eax = in->data[in->read]
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
# if (eax == delimiter) break
39/compare 3/mod/direct 0/rm32/eax . . . 2/r32/edx . . # compare eax and edx
74/jump-if-= $skip-chars-not-matching:end/disp8
# ++in->read
41/increment-ecx
eb/jump $skip-chars-not-matching:loop/disp8
$skip-chars-not-matching:end:
# persist in->read
89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
# . restore registers
5e/pop-to-esi
5b/pop-to-ebx
5a/pop-to-edx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-not-matching:
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# write(_test-stream, "ab ")
# . . push args
68/push "ab "/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# skip-chars-not-matching(_test-stream, 0x20/space)
# . . push args
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call skip-chars-not-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(_test-stream->read, 2, msg)
# . . push args
68/push "F - test-skip-chars-not-matching"/imm32
68/push 2/imm32
# . . push *_test-stream->read
b8/copy-to-eax _test-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
test-skip-chars-not-matching-none:
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# write(_test-stream, " ab")
# . . push args
68/push " ab"/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# skip-chars-not-matching(_test-stream, 0x20/space)
# . . push args
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call skip-chars-not-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(_test-stream->read, 0, msg)
# . . push args
68/push "F - test-skip-chars-not-matching-none"/imm32
68/push 0/imm32
# . . push *_test-stream->read
b8/copy-to-eax _test-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
test-skip-chars-not-matching-all:
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# write(_test-stream, "ab")
# . . push args
68/push "ab"/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# skip-chars-not-matching(_test-stream, 0x20/space)
# . . push args
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call skip-chars-not-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(_test-stream->read, 2, msg)
# . . push args
68/push "F - test-skip-chars-not-matching-all"/imm32
68/push 2/imm32
# . . push *_test-stream->read
b8/copy-to-eax _test-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
skip-chars-not-matching-whitespace: # in: (addr stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
53/push-ebx
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# ecx = in->read
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
# ebx = in->write
8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
$skip-chars-not-matching-whitespace:loop:
# if (in->read >= in->write) break
39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
7d/jump-if->= $skip-chars-not-matching-whitespace:end/disp8
# eax = in->data[in->read]
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
# if (eax == ' ') break
3d/compare-eax-and 0x20/imm32/space
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
# if (eax == '\n') break
3d/compare-eax-and 0x0a/imm32/newline
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
# if (eax == '\t') break
3d/compare-eax-and 0x09/imm32/tab
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
# if (eax == '\r') break
3d/compare-eax-and 0x0d/imm32/cr
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
# ++in->read
41/increment-ecx
eb/jump $skip-chars-not-matching-whitespace:loop/disp8
$skip-chars-not-matching-whitespace:end:
# persist in->read
89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
# . restore registers
5e/pop-to-esi
5b/pop-to-ebx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-not-matching-whitespace:
# setup
# . clear-stream(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# write(_test-stream, "ab\n")
# . . push args
68/push "ab\n"/imm32
68/push _test-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# skip-chars-not-matching-whitespace(_test-stream)
# . . push args
68/push _test-stream/imm32
# . . call
e8/call skip-chars-not-matching-whitespace/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(_test-stream->read, 2, msg)
# . . push args
68/push "F - test-skip-chars-not-matching-whitespace"/imm32
68/push 2/imm32
# . . push *_test-stream->read
b8/copy-to-eax _test-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
skip-chars-matching-in-slice: # curr: (addr byte), end: (addr byte), delimiter: byte -> curr/eax: (addr byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
52/push-edx
53/push-ebx
# eax = curr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# edx = delimiter
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
# var c/ebx: byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-matching-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
73/jump-if-addr>= $skip-chars-matching-in-slice:end/disp8
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (c != delimiter) break
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
75/jump-if-!= $skip-chars-matching-in-slice:end/disp8
# ++curr
40/increment-eax
eb/jump $skip-chars-matching-in-slice:loop/disp8
$skip-chars-matching-in-slice:end:
# . restore registers
5b/pop-to-ebx
5a/pop-to-edx
59/pop-to-ecx
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-matching-in-slice:
# (eax..ecx) = " ab"
b8/copy-to-eax " ab"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-chars-matching-in-slice(eax, ecx, 0x20/space)
# . . push args
68/push 0x20/imm32/space
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-matching-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(ecx-eax, 2, msg)
# . . push args
68/push "F - test-skip-chars-matching-in-slice"/imm32
68/push 2/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
test-skip-chars-matching-in-slice-none:
# (eax..ecx) = "ab"
b8/copy-to-eax "ab"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-chars-matching-in-slice(eax, ecx, 0x20/space)
# . . push args
68/push 0x20/imm32/space
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-matching-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(ecx-eax, 2, msg)
# . . push args
68/push "F - test-skip-chars-matching-in-slice-none"/imm32
68/push 2/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
skip-chars-matching-whitespace-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
53/push-ebx
# eax = curr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# var c/ebx: byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-matching-whitespace-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
0f 83/jump-if-addr>= $skip-chars-matching-in-slice:end/disp32
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (c == ' ') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
74/jump-if-= $skip-chars-matching-whitespace-in-slice:body/disp8
# if (c == '\n') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
74/jump-if-= $skip-chars-matching-whitespace-in-slice:body/disp8
# if (c == '\t') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
74/jump-if-= $skip-chars-matching-whitespace-in-slice:body/disp8
# if (c != '\r') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
75/jump-if-!= $skip-chars-matching-whitespace-in-slice:end/disp8
$skip-chars-matching-whitespace-in-slice:body:
# ++curr
40/increment-eax
eb/jump $skip-chars-matching-whitespace-in-slice:loop/disp8
$skip-chars-matching-whitespace-in-slice:end:
# . restore registers
5b/pop-to-ebx
59/pop-to-ecx
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-matching-whitespace-in-slice:
# (eax..ecx) = " \nab"
b8/copy-to-eax " \nab"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-chars-matching-whitespace-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-matching-whitespace-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 2, msg)
# . . push args
68/push "F - test-skip-chars-matching-whitespace-in-slice"/imm32
68/push 2/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
# minor fork of 'skip-chars-matching-in-slice'
skip-chars-not-matching-in-slice: # curr: (addr byte), end: (addr byte), delimiter: byte -> curr/eax: (addr byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
52/push-edx
53/push-ebx
# eax = curr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# edx = delimiter
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
# var c/ebx: byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-not-matching-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
73/jump-if-addr>= $skip-chars-not-matching-in-slice:end/disp8
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (c == delimiter) break
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
74/jump-if-= $skip-chars-not-matching-in-slice:end/disp8
# ++curr
40/increment-eax
eb/jump $skip-chars-not-matching-in-slice:loop/disp8
$skip-chars-not-matching-in-slice:end:
# . restore registers
5b/pop-to-ebx
5a/pop-to-edx
59/pop-to-ecx
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-not-matching-in-slice:
# (eax..ecx) = "ab "
b8/copy-to-eax "ab "/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-chars-not-matching-in-slice(eax, ecx, 0x20/space)
# . . push args
68/push 0x20/imm32/space
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-not-matching-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(ecx-eax, 1, msg)
# . . push args
68/push "F - test-skip-chars-not-matching-in-slice"/imm32
68/push 1/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
test-skip-chars-not-matching-in-slice-none:
# (eax..ecx) = " ab"
b8/copy-to-eax " ab"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-chars-not-matching-in-slice(eax, ecx, 0x20/space)
# . . push args
68/push 0x20/imm32/space
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-not-matching-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(ecx-eax, 3, msg)
# . . push args
68/push "F - test-skip-chars-not-matching-in-slice-none"/imm32
68/push 3/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
test-skip-chars-not-matching-in-slice-all:
# (eax..ecx) = "ab"
b8/copy-to-eax "ab"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-chars-not-matching-in-slice(eax, ecx, 0x20/space)
# . . push args
68/push 0x20/imm32/space
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-not-matching-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(ecx-eax, 0, msg)
# . . push args
68/push "F - test-skip-chars-not-matching-in-slice-all"/imm32
68/push 0/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
skip-chars-not-matching-whitespace-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
53/push-ebx
# eax = curr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# var c/ebx: byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-not-matching-whitespace-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
0f 83/jump-if-addr>= $skip-chars-not-matching-in-slice:end/disp32
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (c == ' ') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (c == '\n') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (c == '\t') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (c == '\r') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
# ++curr
40/increment-eax
eb/jump $skip-chars-not-matching-whitespace-in-slice:loop/disp8
$skip-chars-not-matching-whitespace-in-slice:end:
# . restore registers
5b/pop-to-ebx
59/pop-to-ecx
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-chars-not-matching-whitespace-in-slice:
# (eax..ecx) = "ab\n"
b8/copy-to-eax "ab\n"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-chars-not-matching-whitespace-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-chars-not-matching-whitespace-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 1, msg)
# . . push args
68/push "F - test-skip-chars-not-matching-whitespace-in-slice"/imm32
68/push 1/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# end
c3/return
# update line->read to end of string literal surrounded by double quotes
# line->read must start out at a double-quote
skip-string: # line: (addr stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
52/push-edx
# ecx = line
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# eax = skip-string-in-slice(&line->data[line->read], &line->data[line->write])
# . . push &line->data[line->write]
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 8/disp8 . # copy *(ecx+8) to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
52/push-edx
# . . push &line->data[line->read]
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
52/push-edx
# . . call
e8/call skip-string-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# line->read = eax - line->data
29/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract ecx from eax
2d/subtract-from-eax 0xc/imm32
89/copy 1/mod/*+disp8 1/rm32/ecx . . 0/r32/eax 4/disp8 . # copy eax to *(ecx+4)
$skip-string:end:
# . restore registers
5a/pop-to-edx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . write(_test-input-stream, "\"abc\" def")
# . indices: 0123 45
# . . push args
68/push "\"abc\" def"/imm32
68/push _test-input-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# precondition: line->read == 0
# . . push args
68/push "F - test-skip-string/precondition"/imm32
68/push 0/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# skip-string(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call skip-string/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(line->read, 5, msg)
# . . push args
68/push "F - test-skip-string"/imm32
68/push 5/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string-ignores-spaces:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . write(_test-input-stream, "\"a b\"/yz")
# . indices: 0123 45
# . . push args
68/push "\"a b\"/yz"/imm32
68/push _test-input-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# precondition: line->read == 0
# . . push args
68/push "F - test-skip-string-ignores-spaces/precondition"/imm32
68/push 0/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# skip-string(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call skip-string/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(line->read, 5, msg)
# . . push args
68/push "F - test-skip-string-ignores-spaces"/imm32
68/push 5/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string-ignores-escapes:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . write(_test-input-stream, "\"a\\\"b\"/yz")
# . indices: 01 2 34 56
# . . push args
68/push "\"a\\\"b\"/yz"/imm32
68/push _test-input-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# precondition: line->read == 0
# . . push args
68/push "F - test-skip-string-ignores-escapes/precondition"/imm32
68/push 0/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# skip-string(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call skip-string/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(line->read, 6, msg)
# . . push args
68/push "F - test-skip-string-ignores-escapes"/imm32
68/push 6/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string-works-from-mid-stream:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . write(_test-input-stream, "0 \"a\\\"b\"/yz")
# . indices: 01 2 34 56
# . . push args
68/push "0 \"a\\\"b\"/yz"/imm32
68/push _test-input-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# precondition: line->read == 2
b8/copy-to-eax _test-input-stream/imm32
c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 2/imm32 # copy to *(eax+4)
# skip-string(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call skip-string/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(line->read, 8, msg)
# . . push args
68/push "F - test-skip-string-works-from-mid-stream"/imm32
68/push 8/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
skip-string-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
52/push-edx
53/push-ebx
# ecx = curr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
# var c/eax: byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# skip initial dquote
41/increment-ecx
$skip-string-in-slice:loop:
# if (curr >= end) return curr
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-addr>= $skip-string-in-slice:return-curr/disp8
# c = *curr
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
$skip-string-in-slice:dquote:
# if (c == '"') break
3d/compare-eax-and 0x22/imm32/double-quote
74/jump-if-= $skip-string-in-slice:break/disp8
$skip-string-in-slice:check-for-escape:
# if (c == '\') escape next char
3d/compare-eax-and 0x5c/imm32/backslash
75/jump-if-!= $skip-string-in-slice:continue/disp8
$skip-string-in-slice:escape:
41/increment-ecx
$skip-string-in-slice:continue:
# ++curr
41/increment-ecx
eb/jump $skip-string-in-slice:loop/disp8
$skip-string-in-slice:break:
# skip final dquote
41/increment-ecx
$skip-string-in-slice:return-curr:
# return curr
89/copy 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # copy ecx to eax
$skip-string-in-slice:end:
# . restore registers
5b/pop-to-ebx
5a/pop-to-edx
59/pop-to-ecx
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string-in-slice:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup: (eax..ecx) = "\"abc\" def"
b8/copy-to-eax "\"abc\" def"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-string-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-string-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 4, msg) # number of chars remaining after the string literal
# . . push args
68/push "F - test-skip-string-in-slice"/imm32
68/push 4/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string-in-slice-ignores-spaces:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup: (eax..ecx) = "\"a b\"/yz"
b8/copy-to-eax "\"a b\"/yz"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-string-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-string-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 3, msg) # number of chars remaining after the string literal
# . . push args
68/push "F - test-skip-string-in-slice-ignores-spaces"/imm32
68/push 3/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string-in-slice-ignores-escapes:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup: (eax..ecx) = "\"a\\\"b\"/yz"
b8/copy-to-eax "\"a\\\"b\"/yz"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-string-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-string-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 3, msg) # number of chars remaining after the string literal
# . . push args
68/push "F - test-skip-string-in-slice-ignores-escapes"/imm32
68/push 3/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string-in-slice-stops-at-end:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup: (eax..ecx) = "\"abc" # unbalanced dquote
b8/copy-to-eax "\"abc"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-string-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-string-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 0, msg) # skipped to end of slice
# . . push args
68/push "F - test-skip-string-in-slice-stops-at-end"/imm32
68/push 0/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
# update line->read to ')'
# line->read ends at ')'
skip-until-close-paren: # line: (addr stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
51/push-ecx
52/push-edx
# ecx = line
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# eax = skip-until-close-paren-in-slice(&line->data[line->read], &line->data[line->write])
# . . push &line->data[line->write]
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 8/disp8 . # copy *(ecx+8) to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
52/push-edx
# . . push &line->data[line->read]
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
52/push-edx
# . . call
e8/call skip-until-close-paren-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# line->read = eax - line->data
29/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract ecx from eax
2d/subtract-from-eax 0xc/imm32
89/copy 1/mod/*+disp8 1/rm32/ecx . . 0/r32/eax 4/disp8 . # copy eax to *(ecx+4)
$skip-until-close-paren:end:
# . restore registers
5a/pop-to-edx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-until-close-paren:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . write(_test-input-stream, "*(abc) def")
# . indices: 0123 45
# . . push args
68/push "*(abc) def"/imm32
68/push _test-input-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# precondition: line->read == 0
# . . push args
68/push "F - test-skip-until-close-paren/precondition"/imm32
68/push 0/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# skip-until-close-paren(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call skip-until-close-paren/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(line->read, 5, msg)
# . . push args
68/push "F - test-skip-until-close-paren"/imm32
68/push 5/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-until-close-paren-ignores-spaces:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . write(_test-input-stream, "*(a b)/yz")
# . . push args
68/push "*(a b)/yz"/imm32
68/push _test-input-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# precondition: line->read == 0
# . . push args
68/push "F - test-skip-until-close-paren-ignores-spaces/precondition"/imm32
68/push 0/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# skip-until-close-paren(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call skip-until-close-paren/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(line->read, 5, msg)
# . . push args
68/push "F - test-skip-until-close-paren-ignores-spaces"/imm32
68/push 5/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-until-close-paren-works-from-mid-stream:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . write(_test-input-stream, "0 *(a b)/yz")
# . . push args
68/push "0 *(a b)/yz"/imm32
68/push _test-input-stream/imm32
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# precondition: _test-input-stream->read == 2
b8/copy-to-eax _test-input-stream/imm32
c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 2/imm32 # copy to *(eax+4)
# skip-until-close-paren(_test-input-stream)
# . . push args
68/push _test-input-stream/imm32
# . . call
e8/call skip-until-close-paren/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# check-ints-equal(_test-input-stream->read, 7, msg)
# . . push args
68/push "F - test-skip-until-close-paren-works-from-mid-stream"/imm32
68/push 7/imm32
b8/copy-to-eax _test-input-stream/imm32
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
skip-until-close-paren-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
52/push-edx
# ecx = curr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
# var c/eax: byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# skip initial dquote
41/increment-ecx
$skip-until-close-paren-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-addr>= $skip-until-close-paren-in-slice:break/disp8
# c = *curr
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
$skip-until-close-paren-in-slice:check-close:
# if (c == ')') break
3d/compare-eax-and 0x29/imm32/close-paren
74/jump-if-= $skip-until-close-paren-in-slice:break/disp8
# ++curr
41/increment-ecx
eb/jump $skip-until-close-paren-in-slice:loop/disp8
$skip-until-close-paren-in-slice:break:
# return curr
89/copy 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # copy ecx to eax
$skip-until-close-paren-in-slice:end:
# . restore registers
5a/pop-to-edx
59/pop-to-ecx
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-until-close-paren-in-slice:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup: (eax..ecx) = "*(abc) def"
b8/copy-to-eax "*(abc) def"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-until-close-paren-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-until-close-paren-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 5, msg) # eax is at the ')'
# . . push args
68/push "F - test-skip-until-close-paren-in-slice"/imm32
68/push 5/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-until-close-paren-in-slice-ignores-spaces:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup: (eax..ecx) = "*(a b)/yz"
b8/copy-to-eax "*(a b)/yz"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-until-close-paren-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-until-close-paren-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 4, msg) # eax is at the ')'
# . . push args
68/push "F - test-skip-until-close-paren-in-slice-ignores-spaces"/imm32
68/push 4/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-until-close-paren-in-slice-stops-at-end:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup: (eax..ecx) = "*(abc" # unbalanced dquote
b8/copy-to-eax "*(abc"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# eax = skip-until-close-paren-in-slice(eax, ecx)
# . . push args
51/push-ecx
50/push-eax
# . . call
e8/call skip-until-close-paren-in-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# check-ints-equal(ecx-eax, 0, msg) # skipped to end of slice
# . . push args
68/push "F - test-skip-until-close-paren-in-slice-stops-at-end"/imm32
68/push 0/imm32
# . . push ecx-eax
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
51/push-ecx
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . epilogue
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
# . . vim:nowrap:textwidth=0