|
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>~/Desktop/s/mu/013literal_string.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v1">
<meta name="syntax" content="cpp">
<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #d0d0d0; background-color: #000000; }
body { font-family: monospace; color: #d0d0d0; background-color: #000000; }
* { font-size: 1em; }
.CommentedCode { color: #6c6c6c; }
.Constant { color: #008080; }
.Comment { color: #8080ff; }
.Delimiter { color: #c000c0; }
.Special { color: #ff6060; }
.Identifier { color: #008080; }
.traceContains { color: #008000; }
-->
</style>
<script type='text/javascript'>
<!--
-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="Comment">//: For convenience, some instructions will take literal arrays of characters (strings).</span>
<span class="Comment">//:</span>
<span class="Comment">//: Instead of quotes, we'll use [] to delimit strings. That'll reduce the</span>
<span class="Comment">//: need for escaping since we can support nested brackets. And we can also</span>
<span class="Comment">//: imagine that 'recipe' might one day itself be defined in mu, doing its own</span>
<span class="Comment">//: parsing.</span>
<span class="Delimiter">:(scenarios load)</span>
<span class="Delimiter">:(scenario string_literal)</span>
recipe main [
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc def] <span class="Comment"># copy can't really take a string</span>
]
<span class="traceContains">+parse: ingredient: {name: "abc def", value: 0, type: 0, properties: ["abc def": "literal-string"]}</span>
<span class="Delimiter">:(scenario string_literal_with_colons)</span>
recipe main [
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc:def/ghi]
]
<span class="traceContains">+parse: ingredient: {name: "abc:def/ghi", value: 0, type: 0, properties: ["abc:def/ghi": "literal-string"]}</span>
<span class="Delimiter">:(before "End Mu Types Initialization")</span>
Type_number[<span class="Constant">"literal-string"</span>] = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">:(after "string next_word(istream& in)")</span>
if <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
string result = slurp_quoted<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
skip_whitespace<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
skip_comment<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
string slurp_quoted<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<span class="Delimiter">());</span>
assert<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">'['</span><span class="Delimiter">);</span>
ostringstream out<span class="Delimiter">;</span>
int size = <span class="Constant">0</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span>
char c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span class="CommentedCode">//? cout << c << '\n'; //? 1</span>
out << c<span class="Delimiter">;</span>
<span class="CommentedCode">//? cout << out.str() << "$\n"; //? 1</span>
if <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> ++size<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> --size<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>size == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(after "reagent::reagent(string s)")</span>
<span class="CommentedCode">//? cout << s.at(0) << '\n'; //? 1</span>
if <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>*s<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">']'</span><span class="Delimiter">);</span>
<span class="Comment">// delete [] delimiters</span>
s<span class="Delimiter">.</span>erase<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span>
s<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>s<span class="Delimiter">.</span>size<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">,</span> s<span class="Delimiter">.</span>size<span class="Delimiter">());</span>
name = s<span class="Delimiter">;</span>
types<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> vector<string> ><span class="Delimiter">(</span>name<span class="Delimiter">,</span> vector<string><span class="Delimiter">()));</span>
properties<span class="Delimiter">.</span>back<span class="Delimiter">().</span>second<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">"literal-string"</span><span class="Delimiter">);</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario string_literal_nested)</span>
recipe main [
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc [def]]
]
<span class="traceContains">+parse: ingredient: {name: "abc [def]", value: 0, type: 0, properties: ["abc [def]": "literal-string"]}</span>
<span class="Delimiter">:(scenario string_literal_and_comment)</span>
recipe main [
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc] <span class="Comment"># comment</span>
]
<span class="traceContains">+parse: instruction: copy</span>
<span class="traceContains">+parse: ingredient: {name: "abc", value: 0, type: 0, properties: ["abc": "literal-string"]}</span>
<span class="traceContains">+parse: product: {name: "1", value: 0, type: 2-5-4, properties: ["1": "address":"array":"character"]}</span>
<span class="Comment"># no other ingredients</span>
$parse: <span class="Constant">3</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|