<!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>Mu - 082scenario_screen.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: #eeeeee; background-color: #080808; }
body { font-family: monospace; color: #eeeeee; background-color: #080808; }
* { font-size: 1.05em; }
.traceContains { color: #008000; }
.traceAbsent { color: #c00000; }
.cSpecial { color: #008000; }
.Comment { color: #9090ff; }
.Delimiter { color: #a04060; }
.Special { color: #ff6060; }
.Identifier { color: #804000; }
.Constant { color: #00a0a0; }
.CommentedCode { color: #6c6c6c; }
-->
</style>
<script type='text/javascript'>
<!--
-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="Comment">//: Clean syntax to manipulate and check the screen in scenarios.</span>
<span class="Comment">//: Instructions 'assume-screen' and 'screen-should-contain' implicitly create</span>
<span class="Comment">//: a variable called 'screen' that is accessible inside other 'run'</span>
<span class="Comment">//: instructions in the scenario. 'screen-should-contain' can check unicode</span>
<span class="Comment">//: characters in the fake screen</span>
<span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span class="Delimiter">:(scenario screen_in_scenario)</span>
scenario screen-in-scenario [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
screen:address:screen<span class="Special"> <- </span>print screen:address:screen<span class="Delimiter">,</span> <span class="Constant">97</span> <span class="Comment"># 'a'</span>
]
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>a <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="Delimiter">:(scenario screen_in_scenario_unicode)</span>
scenario screen-in-scenario-unicode-color [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
screen:address:screen<span class="Special"> <- </span>print screen:address:screen<span class="Delimiter">,</span> <span class="Constant">955</span>/greek-small-lambda<span class="Delimiter">,</span> <span class="Constant">1</span>/red
screen:address:screen<span class="Special"> <- </span>print screen:address:screen<span class="Delimiter">,</span> <span class="Constant">97</span>/a
]
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>λa <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="Delimiter">:(scenario screen_in_scenario_color)</span>
<span class="Comment"># screen-should-contain can check unicode characters in the fake screen</span>
scenario screen-in-scenario-color [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
screen:address:screen<span class="Special"> <- </span>print screen:address:screen<span class="Delimiter">,</span> <span class="Constant">955</span>/greek-small-lambda<span class="Delimiter">,</span> <span class="Constant">1</span>/red
screen:address:screen<span class="Special"> <- </span>print screen:address:screen<span class="Delimiter">,</span> <span class="Constant">97</span>/a<span class="Delimiter">,</span> <span class="Constant">7</span>/white
]
<span class="Comment"># screen-should-contain shows everything</span>
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>λa <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
<span class="Comment"># screen-should-contain-in-color filters out everything except the given</span>
<span class="Comment"># color, all you see is the 'a' in white.</span>
screen-should-contain-in-color <span class="Constant">7</span>/white<span class="Delimiter">,</span> [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span> a <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
<span class="Comment"># ..and the λ in red.</span>
screen-should-contain-in-color <span class="Constant">1</span>/red<span class="Delimiter">,</span> [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>λ <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="Delimiter">:(scenario screen_in_scenario_error)</span>
<span class="Special">% Scenario_testing_scenario = true;</span>
<span class="Special">% Hide_errors = true;</span>
scenario screen-in-scenario-error [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
screen:address:screen<span class="Special"> <- </span>print screen:address:screen<span class="Delimiter">,</span> <span class="Constant">97</span> <span class="Comment"># 'a'</span>
]
screen-should-contain [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>b <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="traceContains">+error: expected screen location (0, 0) to contain 98 ('b') instead of 97 ('a')</span>
<span class="Delimiter">:(scenario screen_in_scenario_color_error)</span>
<span class="Special">% Scenario_testing_scenario = true;</span>
<span class="Special">% Hide_errors = true;</span>
<span class="Comment"># screen-should-contain can check unicode characters in the fake screen</span>
scenario screen-in-scenario-color [
assume-screen <span class="Constant">5</span>/width<span class="Delimiter">,</span> <span class="Constant">3</span>/height
run [
screen:address:screen<span class="Special"> <- </span>print screen:address:screen<span class="Delimiter">,</span> <span class="Constant">97</span>/a<span class="Delimiter">,</span> <span class="Constant">1</span>/red
]
screen-should-contain-in-color <span class="Constant">2</span>/green<span class="Delimiter">,</span> [
<span class="Comment"># 01234</span>
<span class="Delimiter">.</span>a <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
<span class="Delimiter">.</span> <span class="Delimiter">.</span>
]
]
<span class="traceContains">+error: expected screen location (0, 0) to be in color 2 instead of 1</span>
<span class="Comment">//: allow naming just for 'screen'</span>
<span class="Delimiter">:(before "End is_special_name Cases")</span>
if <span class="Delimiter">(</span>s == <span class="Constant">"screen"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">:(scenarios run)</span>
<span class="Delimiter">:(scenario convert_names_does_not_fail_when_mixing_special_names_and_numeric_locations)</span>
<span class="Special">% Scenario_testing_scenario = true;</span>
<span class="Special">% Hide_errors = true;</span>
recipe main [
screen:number<span class="Special"> <- </span>copy <span class="Constant">1</span>:number
]
<span class="traceAbsent">-error: mixing variable names and numeric addresses in main</span>
$error: <span class="Constant">0</span>
<span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Comment">// Scenarios may not define default-space, so they should fit within the</span>
<span class="Comment">// initial area of memory reserved for tests. We'll put the predefined</span>
<span class="Comment">// variables available to them at the end of that region.</span>
const long long int Max_variables_in_scenarios = Reserved_for_tests-<span class="Constant">100</span><span class="Delimiter">;</span>
long long int Next_predefined_global_for_scenarios = Max_variables_in_scenarios<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Setup")</span>
assert<span class="Delimiter">(</span>Next_predefined_global_for_scenarios < Reserved_for_tests<span class="Delimiter">);</span>
<span class="Delimiter">:(after "transform_all()" following "case RUN:")</span>
<span class="Comment">// There's a restriction on the number of variables 'run' can use, so that</span>
<span class="Comment">// it can avoid colliding with the dynamic allocator in case it doesn't</span>
<span class="Comment">// initialize a default-space.</span>
assert<span class="Delimiter">(</span>Name[tmp_recipe<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>][<span class="Constant">""</span>] < Max_variables_in_scenarios<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Comment">// Scenario Globals.</span>
const long long int SCREEN = Next_predefined_global_for_scenarios++<span class="Delimiter">;</span>
<span class="Comment">// End Scenario Globals.</span>
<span class="Delimiter">:(before "End Special Scenario Variable Names(r)")</span>
Name[r][<span class="Constant">"screen"</span>] = SCREEN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Rewrite Instruction(curr, recipe result)")</span>
<span class="Comment">// rewrite `assume-screen width, height` to</span>
<span class="Comment">// `screen:address:screen <- new-fake-screen width, height`</span>
if <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"assume-screen"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
curr<span class="Delimiter">.</span>name = <span class="Constant">"new-fake-screen"</span><span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span><span class="Constant">"screen:address:screen"</span><span class="Delimiter">));</span>
curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>set_value<span class="Delimiter">(</span>SCREEN<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">//: screen-should-contain is a regular instruction</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
SCREEN_SHOULD_CONTAIN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen-should-contain"</span><span class="Delimiter">,</span> SCREEN_SHOULD_CONTAIN<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
case SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
<span class="CommentedCode">//? cerr << SIZE(get(Recipe_variants, "insert")) << '\n';</span>
<span class="CommentedCode">//? cerr << debug_string(get(Recipe, get(Recipe_ordinal, "insert_4"))) << '\n';</span>
if <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
check_screen<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">,</span> -<span class="Constant">1</span><span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen-should-contain-in-color"</span><span class="Delimiter">,</span> SCREEN_SHOULD_CONTAIN_IN_COLOR<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
case SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)));</span>
check_screen<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name<span class="Delimiter">,</span> ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Comment">// scan an array of characters in a unicode-aware, bounds-checked manner</span>
struct raw_string_stream <span class="Delimiter">{</span>
long long int index<span class="Delimiter">;</span>
const long long int max<span class="Delimiter">;</span>
const char* buf<span class="Delimiter">;</span>
raw_string_stream<span class="Delimiter">(</span>const string&<span class="Delimiter">);</span>
uint32_t get<span class="Delimiter">();</span> <span class="Comment">// unicode codepoint</span>
uint32_t peek<span class="Delimiter">();</span> <span class="Comment">// unicode codepoint</span>
bool at_end<span class="Delimiter">()</span> const<span class="Delimiter">;</span>
void skip_whitespace_and_comments<span class="Delimiter">();</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(code)</span>
void check_screen<span class="Delimiter">(</span>const string& expected_contents<span class="Delimiter">,</span> const int color<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>!current_call<span class="Delimiter">().</span>default_space<span class="Delimiter">);</span> <span class="Comment">// not supported</span>
long long int screen_location = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> SCREEN<span class="Delimiter">);</span>
int data_offset = find_element_name<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen"</span><span class="Delimiter">),</span> <span class="Constant">"data"</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>data_offset >= <span class="Constant">0</span><span class="Delimiter">);</span>
long long int screen_data_location = screen_location+data_offset<span class="Delimiter">;</span> <span class="Comment">// type: address:array:character</span>
long long int screen_data_start = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_location<span class="Delimiter">);</span> <span class="Comment">// type: array:character</span>
int width_offset = find_element_name<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen"</span><span class="Delimiter">),</span> <span class="Constant">"num-columns"</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span>
long long int screen_width = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+width_offset<span class="Delimiter">);</span>
int height_offset = find_element_name<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen"</span><span class="Delimiter">),</span> <span class="Constant">"num-rows"</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span>
long long int screen_height = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+height_offset<span class="Delimiter">);</span>
raw_string_stream cursor<span class="Delimiter">(</span>expected_contents<span class="Delimiter">);</span>
<span class="Comment">// todo: too-long expected_contents should fail</span>
long long int addr = screen_data_start+<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// skip length</span>
for <span class="Delimiter">(</span>long long int row = <span class="Constant">0</span><span class="Delimiter">;</span> row < screen_height<span class="Delimiter">;</span> ++row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cursor<span class="Delimiter">.</span>skip_whitespace_and_comments<span class="Delimiter">();</span>
if <span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>at_end<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>get<span class="Delimiter">()</span> == <span class="Constant">'.'</span><span class="Delimiter">);</span>
for <span class="Delimiter">(</span>long long int column = <span class="Constant">0</span><span class="Delimiter">;</span> column < screen_width<span class="Delimiter">;</span> ++column<span class="Delimiter">,</span> addr+= <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
const int cell_color_offset = <span class="Constant">1</span><span class="Delimiter">;</span>
uint32_t curr = cursor<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
if <span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)</span> == <span class="Constant">0</span> && isspace<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr == <span class="Constant">' '</span> && color != -<span class="Constant">1</span> && color != get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span class="Comment">// filter out other colors</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)</span> != <span class="Constant">0</span> && Memory[addr] == curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>color == -<span class="Constant">1</span> || color == get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Comment">// contents match but color is off</span>
if <span class="Delimiter">(</span>Current_scenario && !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// genuine test in a mu file</span>
raise_error << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << Current_scenario<span class="Delimiter">-></span>name << <span class="Constant">": expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">", address "</span> << addr << <span class="Constant">", value "</span> << no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">))</span> << <span class="Constant">") to be in color "</span> << color << <span class="Constant">" instead of "</span> << no_scientific<span class="Delimiter">(</span>Memory[addr+cell_color_offset]<span class="Delimiter">)</span> << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
else <span class="Delimiter">{</span>
<span class="Comment">// just testing check_screen</span>
raise_error << <span class="Constant">"expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">") to be in color "</span> << color << <span class="Constant">" instead of "</span> << no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
++Num_failures<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// really a mismatch</span>
<span class="Comment">// can't print multi-byte unicode characters in errors just yet. not very useful for debugging anyway.</span>
char expected_pretty[<span class="Constant">10</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span>
if <span class="Delimiter">(</span>curr < <span class="Constant">256</span> && !iscntrl<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span class="Comment">// " ('<curr>')"</span>
expected_pretty[<span class="Constant">0</span>] = <span class="Constant">' '</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">1</span>] = <span class="Constant">'('</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">2</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">3</span>] = static_cast<unsigned char><span class="Delimiter">(</span>curr<span class="Delimiter">),</span> expected_pretty[<span class="Constant">4</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">5</span>] = <span class="Constant">')'</span><span class="Delimiter">,</span> expected_pretty[<span class="Constant">6</span>] = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
char actual_pretty[<span class="Constant">10</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span>
if <span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)</span> < <span class="Constant">256</span> && !iscntrl<span class="Delimiter">(</span>Memory[addr]<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span class="Comment">// " ('<curr>')"</span>
actual_pretty[<span class="Constant">0</span>] = <span class="Constant">' '</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">1</span>] = <span class="Constant">'('</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">2</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">3</span>] = static_cast<unsigned char><span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">)),</span> actual_pretty[<span class="Constant">4</span>] = <span class="cSpecial">'\''</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">5</span>] = <span class="Constant">')'</span><span class="Delimiter">,</span> actual_pretty[<span class="Constant">6</span>] = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
ostringstream color_phrase<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>color != -<span class="Constant">1</span><span class="Delimiter">)</span> color_phrase << <span class="Constant">" in color "</span> << color<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Current_scenario && !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// genuine test in a mu file</span>
raise_error << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << Current_scenario<span class="Delimiter">-></span>name << <span class="Constant">": expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">") to contain "</span> << curr << expected_pretty << color_phrase<span class="Delimiter">.</span>str<span class="Delimiter">()</span> << <span class="Constant">" instead of "</span> << no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">))</span> << actual_pretty << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
dump_screen<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
else <span class="Delimiter">{</span>
<span class="Comment">// just testing check_screen</span>
raise_error << <span class="Constant">"expected screen location ("</span> << row << <span class="Constant">", "</span> << column << <span class="Constant">") to contain "</span> << curr << expected_pretty << color_phrase<span class="Delimiter">.</span>str<span class="Delimiter">()</span> << <span class="Constant">" instead of "</span> << no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">))</span> << actual_pretty << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
++Num_failures<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
assert<span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>get<span class="Delimiter">()</span> == <span class="Constant">'.'</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
cursor<span class="Delimiter">.</span>skip_whitespace_and_comments<span class="Delimiter">();</span>
assert<span class="Delimiter">(</span>cursor<span class="Delimiter">.</span>at_end<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
raw_string_stream::raw_string_stream<span class="Delimiter">(</span>const string& backing<span class="Delimiter">)</span> :index<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> max<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>backing<span class="Delimiter">)),</span> buf<span class="Delimiter">(</span>backing<span class="Delimiter">.</span>c_str<span class="Delimiter">())</span> <span class="Delimiter">{}</span>
bool raw_string_stream::at_end<span class="Delimiter">()</span> const <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>index >= max<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>tb_utf8_char_length<span class="Delimiter">(</span>buf[index]<span class="Delimiter">)</span> > max-index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise_error << <span class="Constant">"unicode string seems corrupted at index "</span><< index << <span class="Constant">" character "</span> << static_cast<int><span class="Delimiter">(</span>buf[index]<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
uint32_t raw_string_stream::get<span class="Delimiter">()</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>index < max<span class="Delimiter">);</span> <span class="Comment">// caller must check bounds before calling 'get'</span>
uint32_t result = <span class="Constant">0</span><span class="Delimiter">;</span>
int length = tb_utf8_char_to_unicode<span class="Delimiter">(</span>&result<span class="Delimiter">,</span> &buf[index]<span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>length != TB_EOF<span class="Delimiter">);</span>
index += length<span class="Delimiter">;</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
uint32_t raw_string_stream::peek<span class="Delimiter">()</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>index < max<span class="Delimiter">);</span> <span class="Comment">// caller must check bounds before calling 'get'</span>
uint32_t result = <span class="Constant">0</span><span class="Delimiter">;</span>
int length = tb_utf8_char_to_unicode<span class="Delimiter">(</span>&result<span class="Delimiter">,</span> &buf[index]<span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>length != TB_EOF<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
void raw_string_stream::skip_whitespace_and_comments<span class="Delimiter">()</span> <span class="Delimiter">{</span>
while <span class="Delimiter">(</span>!at_end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>isspace<span class="Delimiter">(</span>peek<span class="Delimiter">()))</span> get<span class="Delimiter">();</span>
else if <span class="Delimiter">(</span>peek<span class="Delimiter">()</span> == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// skip comment</span>
get<span class="Delimiter">();</span>
while <span class="Delimiter">(</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> get<span class="Delimiter">();</span> <span class="Comment">// implicitly also handles CRLF</span>
<span class="Delimiter">}</span>
else <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
_DUMP_SCREEN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"$dump-screen"</span><span class="Delimiter">,</span> _DUMP_SCREEN<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
case _DUMP_SCREEN: <span class="Delimiter">{</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case _DUMP_SCREEN: <span class="Delimiter">{</span>
dump_screen<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
void dump_screen<span class="Delimiter">()</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>!current_call<span class="Delimiter">().</span>default_space<span class="Delimiter">);</span> <span class="Comment">// not supported</span>
long long int screen_location = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> SCREEN<span class="Delimiter">);</span>
int width_offset = find_element_name<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen"</span><span class="Delimiter">),</span> <span class="Constant">"num-columns"</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span>
long long int screen_width = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+width_offset<span class="Delimiter">);</span>
int height_offset = find_element_name<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen"</span><span class="Delimiter">),</span> <span class="Constant">"num-rows"</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span>
long long int screen_height = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_location+height_offset<span class="Delimiter">);</span>
int data_offset = find_element_name<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"screen"</span><span class="Delimiter">),</span> <span class="Constant">"data"</span><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>data_offset >= <span class="Constant">0</span><span class="Delimiter">);</span>
long long int screen_data_location = screen_location+data_offset<span class="Delimiter">;</span> <span class="Comment">// type: address:array:character</span>
long long int screen_data_start = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_location<span class="Delimiter">);</span> <span class="Comment">// type: array:character</span>
assert<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> screen_data_start<span class="Delimiter">)</span> == screen_width*screen_height<span class="Delimiter">);</span>
long long int curr = screen_data_start+<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// skip length</span>
for <span class="Delimiter">(</span>long long int row = <span class="Constant">0</span><span class="Delimiter">;</span> row < screen_height<span class="Delimiter">;</span> ++row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cerr << <span class="Constant">'.'</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int col = <span class="Constant">0</span><span class="Delimiter">;</span> col < screen_width<span class="Delimiter">;</span> ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">))</span>
cerr << to_unicode<span class="Delimiter">(</span>static_cast<uint32_t><span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">)));</span>
else
cerr << <span class="Constant">' '</span><span class="Delimiter">;</span>
curr += <span class="Comment">/*</span><span class="Comment">size of screen-cell</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
cerr << <span class="Constant">".</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->