1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
|
<!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 - 014literal_string.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v2">
<meta name="syntax" content="cpp">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
a { color:#eeeeee; text-decoration: none; }
a:hover { text-decoration: underline; }
* { font-size: 12pt; font-size: 1em; }
.Constant { color: #00a0a0; }
.Special { color: #c00000; }
.muRecipe { color: #ff8700; }
.Comment { color: #9090ff; }
.Comment a { color:#0000ee; text-decoration:underline; }
.Delimiter { color: #800080; }
.LineNr { color: #444444; }
.Identifier { color: #c0a020; }
.Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; }
.traceContains { color: #008000; }
.cSpecial { color: #008000; }
-->
</style>
<script type='text/javascript'>
<!--
/* function to open any folds containing a jumped-to line before jumping to it */
function JumpToLine()
{
var lineNum;
lineNum = window.location.hash;
lineNum = lineNum.substr(1); /* strip off '#' */
if (lineNum.indexOf('L') == -1) {
lineNum = 'L'+lineNum;
}
lineElem = document.getElementById(lineNum);
/* Always jump to new location even if the line was hidden inside a fold, or
* we corrected the raw number to a line ID.
*/
if (lineElem) {
lineElem.scrollIntoView(true);
}
return true;
}
if ('onhashchange' in window) {
window.onhashchange = JumpToLine;
}
-->
</script>
</head>
<body onload='JumpToLine();'>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: For convenience, some instructions will take literal arrays of characters</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: (text or strings).</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">//:</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: Instead of quotes, we'll use [] to delimit strings. That'll reduce the</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: need for escaping since we can support nested brackets. And we can also</span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment">//: imagine that 'recipe' might one day itself be defined in Mu, doing its own</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: parsing.</span>
<span id="L8" class="LineNr"> 8 </span>
<span id="L9" class="LineNr"> 9 </span><span class="Delimiter">:(scenarios load)</span>
<span id="L10" class="LineNr"> 10 </span><span class="Delimiter">:(scenario string_literal)</span>
<span id="L11" class="LineNr"> 11 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L12" class="LineNr"> 12 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:character<span class="Special"> <- </span>copy [abc def]
<span id="L13" class="LineNr"> 13 </span>]
<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+parse: ingredient: {"abc def": "literal-string"}</span>
<span id="L15" class="LineNr"> 15 </span>
<span id="L16" class="LineNr"> 16 </span><span class="Delimiter">:(scenario string_literal_with_colons)</span>
<span id="L17" class="LineNr"> 17 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L18" class="LineNr"> 18 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:character<span class="Special"> <- </span>copy [abc:def/ghi]
<span id="L19" class="LineNr"> 19 </span>]
<span id="L20" class="LineNr"> 20 </span><span class="traceContains">+parse: ingredient: {"abc:def/ghi": "literal-string"}</span>
<span id="L21" class="LineNr"> 21 </span>
<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(before "End Mu Types Initialization")</span>
<span id="L23" class="LineNr"> 23 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"literal-string"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L24" class="LineNr"> 24 </span>
<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">:(before "End <a href='011load.cc.html#L167'>next_word</a> Special-cases")</span>
<span id="L26" class="LineNr"> 26 </span><span class="Normal">if</span> <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>
<span id="L27" class="LineNr"> 27 </span> string result = <a href='014literal_string.cc.html#L33'>slurp_quoted</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L28" class="LineNr"> 28 </span> <a href='011load.cc.html#L220'>skip_whitespace_and_comments_but_not_newline</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L29" class="LineNr"> 29 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L30" class="LineNr"> 30 </span><span class="Delimiter">}</span>
<span id="L31" class="LineNr"> 31 </span>
<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">:(code)</span>
<span id="L33" class="LineNr"> 33 </span>string <a href='014literal_string.cc.html#L33'>slurp_quoted</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L34" class="LineNr"> 34 </span> ostringstream out<span class="Delimiter">;</span>
<span id="L35" class="LineNr"> 35 </span> assert<span class="Delimiter">(</span><a href='001help.cc.html#L239'>has_data</a><span class="Delimiter">(</span>in<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> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> <span class="Comment">// slurp the '['</span>
<span id="L36" class="LineNr"> 36 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='014literal_string.cc.html#L45'>is_code_string</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">))</span>
<span id="L37" class="LineNr"> 37 </span> <a href='014literal_string.cc.html#L82'>slurp_quoted_comment_aware</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span id="L38" class="LineNr"> 38 </span> <span class="Normal">else</span>
<span id="L39" class="LineNr"> 39 </span> <a href='014literal_string.cc.html#L62'>slurp_quoted_comment_oblivious</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span id="L40" class="LineNr"> 40 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span id="L41" class="LineNr"> 41 </span><span class="Delimiter">}</span>
<span id="L42" class="LineNr"> 42 </span>
<span id="L43" class="LineNr"> 43 </span><span class="Comment">// A string is a code string (ignores comments when scanning for matching</span>
<span id="L44" class="LineNr"> 44 </span><span class="Comment">// brackets) if it contains a newline at the start before any non-whitespace.</span>
<span id="L45" class="LineNr"> 45 </span><span class="Normal">bool</span> <a href='014literal_string.cc.html#L45'>is_code_string</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L46" class="LineNr"> 46 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L239'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L47" class="LineNr"> 47 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span id="L48" class="LineNr"> 48 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!isspace<span class="Delimiter">(</span>c<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L49" class="LineNr"> 49 </span> in<span class="Delimiter">.</span>putback<span class="Delimiter">(</span>c<span class="Delimiter">);</span>
<span id="L50" class="LineNr"> 50 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L51" class="LineNr"> 51 </span> <span class="Delimiter">}</span>
<span id="L52" class="LineNr"> 52 </span> out << c<span class="Delimiter">;</span>
<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L54" class="LineNr"> 54 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L55" class="LineNr"> 55 </span> <span class="Delimiter">}</span>
<span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span>
<span id="L57" class="LineNr"> 57 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span>
<span id="L59" class="LineNr"> 59 </span>
<span id="L60" class="LineNr"> 60 </span><span class="Comment">// Read a regular string. Regular strings can only contain other regular</span>
<span id="L61" class="LineNr"> 61 </span><span class="Comment">// strings.</span>
<span id="L62" class="LineNr"> 62 </span><span class="Normal">void</span> <a href='014literal_string.cc.html#L62'>slurp_quoted_comment_oblivious</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L63" class="LineNr"> 63 </span> <span class="Normal">int</span> brace_depth = <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L64" class="LineNr"> 64 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L239'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L65" class="LineNr"> 65 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span id="L66" class="LineNr"> 66 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L67" class="LineNr"> 67 </span> <a href='014literal_string.cc.html#L148'>slurp_one_past_backslashes</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span id="L68" class="LineNr"> 68 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L69" class="LineNr"> 69 </span> <span class="Delimiter">}</span>
<span id="L70" class="LineNr"> 70 </span> out << c<span class="Delimiter">;</span>
<span id="L71" class="LineNr"> 71 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> ++brace_depth<span class="Delimiter">;</span>
<span id="L72" class="LineNr"> 72 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> --brace_depth<span class="Delimiter">;</span>
<span id="L73" class="LineNr"> 73 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>brace_depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L74" class="LineNr"> 74 </span> <span class="Delimiter">}</span>
<span id="L75" class="LineNr"> 75 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">)</span> && brace_depth > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L76" class="LineNr"> 76 </span> <a href='003trace.cc.html#L174'>raise</a> << <span class="Constant">"unbalanced '['</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L77" class="LineNr"> 77 </span> out<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L78" class="LineNr"> 78 </span> <span class="Delimiter">}</span>
<span id="L79" class="LineNr"> 79 </span><span class="Delimiter">}</span>
<span id="L80" class="LineNr"> 80 </span>
<span id="L81" class="LineNr"> 81 </span><span class="Comment">// Read a code string. Code strings can contain either code or regular strings.</span>
<span id="L82" class="LineNr"> 82 </span><span class="Normal">void</span> <a href='014literal_string.cc.html#L82'>slurp_quoted_comment_aware</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L83" class="LineNr"> 83 </span> <span class="Normal">char</span> c<span class="Delimiter">;</span>
<span id="L84" class="LineNr"> 84 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>in >> c<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L85" class="LineNr"> 85 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L86" class="LineNr"> 86 </span> <a href='014literal_string.cc.html#L148'>slurp_one_past_backslashes</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span id="L87" class="LineNr"> 87 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L88" class="LineNr"> 88 </span> <span class="Delimiter">}</span>
<span id="L89" class="LineNr"> 89 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L90" class="LineNr"> 90 </span> out << c<span class="Delimiter">;</span>
<span id="L91" class="LineNr"> 91 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L239'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span>
<span id="L92" class="LineNr"> 92 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L93" class="LineNr"> 93 </span> <span class="Delimiter">}</span>
<span id="L94" class="LineNr"> 94 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L95" class="LineNr"> 95 </span> in<span class="Delimiter">.</span>putback<span class="Delimiter">(</span>c<span class="Delimiter">);</span>
<span id="L96" class="LineNr"> 96 </span> <span class="Comment">// recurse</span>
<span id="L97" class="LineNr"> 97 </span> out << <a href='014literal_string.cc.html#L33'>slurp_quoted</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L98" class="LineNr"> 98 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span>
<span id="L100" class="LineNr">100 </span> out << c<span class="Delimiter">;</span>
<span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L102" class="LineNr">102 </span> <span class="Delimiter">}</span>
<span id="L103" class="LineNr">103 </span> <a href='003trace.cc.html#L174'>raise</a> << <span class="Constant">"unbalanced '['</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L104" class="LineNr">104 </span> out<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L105" class="LineNr">105 </span><span class="Delimiter">}</span>
<span id="L106" class="LineNr">106 </span>
<span id="L107" class="LineNr">107 </span><span class="Delimiter">:(after "Parsing reagent(string s)")</span>
<span id="L108" class="LineNr">108 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L77'>starts_with</a><span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Constant">"["</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L109" class="LineNr">109 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*s<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">']'</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// unbalanced bracket; handled elsewhere</span>
<span id="L110" class="LineNr">110 </span> name = s<span class="Delimiter">;</span>
<span id="L111" class="LineNr">111 </span> <span class="Comment">// delete [] delimiters</span>
<span id="L112" class="LineNr">112 </span> name<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>
<span id="L113" class="LineNr">113 </span> <a href='014literal_string.cc.html#L144'>strip_last</a><span class="Delimiter">(</span>name<span class="Delimiter">);</span>
<span id="L114" class="LineNr">114 </span> type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">"literal-string"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L115" class="LineNr">115 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L116" class="LineNr">116 </span><span class="Delimiter">}</span>
<span id="L117" class="LineNr">117 </span>
<span id="L118" class="LineNr">118 </span><span class="Comment">//: Unlike other reagents, escape newlines in literal strings to make them</span>
<span id="L119" class="LineNr">119 </span><span class="Comment">//: more friendly to trace().</span>
<span id="L120" class="LineNr">120 </span>
<span id="L121" class="LineNr">121 </span><span class="Delimiter">:(after "string to_string(const reagent& r)")</span>
<span id="L122" class="LineNr">122 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='014literal_string.cc.html#L126'>is_literal_text</a><span class="Delimiter">(</span>r<span class="Delimiter">))</span>
<span id="L123" class="LineNr">123 </span> <span class="Identifier">return</span> <a href='014literal_string.cc.html#L130'>emit_literal_string</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>name<span class="Delimiter">);</span>
<span id="L124" class="LineNr">124 </span>
<span id="L125" class="LineNr">125 </span><span class="Delimiter">:(code)</span>
<span id="L126" class="LineNr">126 </span><span class="Normal">bool</span> <a href='014literal_string.cc.html#L126'>is_literal_text</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L127" class="LineNr">127 </span> <span class="Identifier">return</span> x<span class="Delimiter">.</span>type && x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"literal-string"</span><span class="Delimiter">;</span>
<span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span>
<span id="L129" class="LineNr">129 </span>
<span id="L130" class="LineNr">130 </span>string <a href='014literal_string.cc.html#L130'>emit_literal_string</a><span class="Delimiter">(</span>string name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L131" class="LineNr">131 </span> <span class="Normal">size_t</span> pos = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L132" class="LineNr">132 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>pos != string::npos<span class="Delimiter">)</span>
<span id="L133" class="LineNr">133 </span> pos = <a href='014literal_string.cc.html#L137'>replace</a><span class="Delimiter">(</span>name<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\\</span><span class="Constant">n"</span><span class="Delimiter">,</span> pos<span class="Delimiter">);</span>
<span id="L134" class="LineNr">134 </span> <span class="Identifier">return</span> <span class="Constant">"{</span><span class="cSpecial">\"</span><span class="Constant">"</span>+name+<span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">: </span><span class="cSpecial">\"</span><span class="Constant">literal-string</span><span class="cSpecial">\"</span><span class="Constant">}"</span><span class="Delimiter">;</span>
<span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span>
<span id="L136" class="LineNr">136 </span>
<span id="L137" class="LineNr">137 </span><span class="Normal">size_t</span> <a href='014literal_string.cc.html#L137'>replace</a><span class="Delimiter">(</span>string& str<span class="Delimiter">,</span> <span class="Normal">const</span> string& from<span class="Delimiter">,</span> <span class="Normal">const</span> string& to<span class="Delimiter">,</span> <span class="Normal">size_t</span> n<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L138" class="LineNr">138 </span> <span class="Normal">size_t</span> result = str<span class="Delimiter">.</span>find<span class="Delimiter">(</span>from<span class="Delimiter">,</span> n<span class="Delimiter">);</span>
<span id="L139" class="LineNr">139 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result != string::npos<span class="Delimiter">)</span>
<span id="L140" class="LineNr">140 </span> str<span class="Delimiter">.</span><a href='014literal_string.cc.html#L137'>replace</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> from<span class="Delimiter">.</span>length<span class="Delimiter">(),</span> to<span class="Delimiter">);</span>
<span id="L141" class="LineNr">141 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L142" class="LineNr">142 </span><span class="Delimiter">}</span>
<span id="L143" class="LineNr">143 </span>
<span id="L144" class="LineNr">144 </span><span class="Normal">void</span> <a href='014literal_string.cc.html#L144'>strip_last</a><span class="Delimiter">(</span>string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L145" class="LineNr">145 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> s<span class="Delimiter">.</span>erase<span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L146" class="LineNr">146 </span><span class="Delimiter">}</span>
<span id="L147" class="LineNr">147 </span>
<span id="L148" class="LineNr">148 </span><span class="Normal">void</span> <a href='014literal_string.cc.html#L148'>slurp_one_past_backslashes</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L149" class="LineNr">149 </span> <span class="Comment">// When you encounter a backslash, strip it out and pass through any</span>
<span id="L150" class="LineNr">150 </span> <span class="Comment">// following run of backslashes. If we 'escaped' a single following</span>
<span id="L151" class="LineNr">151 </span> <span class="Comment">// character, then the character '\' would be:</span>
<span id="L152" class="LineNr">152 </span> <span class="Comment">// '\\' escaped once</span>
<span id="L153" class="LineNr">153 </span> <span class="Comment">// '\\\\' escaped twice</span>
<span id="L154" class="LineNr">154 </span> <span class="Comment">// '\\\\\\\\' escaped thrice (8 backslashes)</span>
<span id="L155" class="LineNr">155 </span> <span class="Comment">// ..and so on. With our approach it'll be:</span>
<span id="L156" class="LineNr">156 </span> <span class="Comment">// '\\' escaped once</span>
<span id="L157" class="LineNr">157 </span> <span class="Comment">// '\\\' escaped twice</span>
<span id="L158" class="LineNr">158 </span> <span class="Comment">// '\\\\' escaped thrice</span>
<span id="L159" class="LineNr">159 </span> <span class="Comment">// This only works as long as backslashes aren't also overloaded to create</span>
<span id="L160" class="LineNr">160 </span> <span class="Comment">// special characters. So Mu doesn't follow C's approach of overloading</span>
<span id="L161" class="LineNr">161 </span> <span class="Comment">// backslashes both to escape quote characters and also as a notation for</span>
<span id="L162" class="LineNr">162 </span> <span class="Comment">// unprintable characters like '\n'.</span>
<span id="L163" class="LineNr">163 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L239'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L164" class="LineNr">164 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span id="L165" class="LineNr">165 </span> out << c<span class="Delimiter">;</span>
<span id="L166" class="LineNr">166 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c != <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L167" class="LineNr">167 </span> <span class="Delimiter">}</span>
<span id="L168" class="LineNr">168 </span><span class="Delimiter">}</span>
<span id="L169" class="LineNr">169 </span>
<span id="L170" class="LineNr">170 </span><span class="Delimiter">:(scenario string_literal_nested)</span>
<span id="L171" class="LineNr">171 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L172" class="LineNr">172 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:character<span class="Special"> <- </span>copy [abc [def]]
<span id="L173" class="LineNr">173 </span>]
<span id="L174" class="LineNr">174 </span><span class="traceContains">+parse: ingredient: {"abc [def]": "literal-string"}</span>
<span id="L175" class="LineNr">175 </span>
<span id="L176" class="LineNr">176 </span><span class="Delimiter">:(scenario string_literal_escaped)</span>
<span id="L177" class="LineNr">177 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L178" class="LineNr">178 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:character<span class="Special"> <- </span>copy [abc \[def]
<span id="L179" class="LineNr">179 </span>]
<span id="L180" class="LineNr">180 </span><span class="traceContains">+parse: ingredient: {"abc [def": "literal-string"}</span>
<span id="L181" class="LineNr">181 </span>
<span id="L182" class="LineNr">182 </span><span class="Delimiter">:(scenario string_literal_escaped_twice)</span>
<span id="L183" class="LineNr">183 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L184" class="LineNr">184 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:character<span class="Special"> <- </span>copy [
<span id="L185" class="LineNr">185 </span>abc \\[def]
<span id="L186" class="LineNr">186 </span>]
<span id="L187" class="LineNr">187 </span><span class="traceContains">+parse: ingredient: {"\nabc \[def": "literal-string"}</span>
<span id="L188" class="LineNr">188 </span>
<span id="L189" class="LineNr">189 </span><span class="Delimiter">:(scenario string_literal_and_comment)</span>
<span id="L190" class="LineNr">190 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L191" class="LineNr">191 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:character<span class="Special"> <- </span>copy [abc] <span class="Comment"># comment</span>
<span id="L192" class="LineNr">192 </span>]
<span id="L193" class="LineNr">193 </span><span class="traceContains">+parse: --- defining <a href='000organization.cc.html#L113'>main</a></span>
<span id="L194" class="LineNr">194 </span><span class="traceContains">+parse: <a href='010vm.cc.html#L32'>instruction</a>: copy</span>
<span id="L195" class="LineNr">195 </span><span class="traceContains">+parse: number of ingredients: 1</span>
<span id="L196" class="LineNr">196 </span><span class="traceContains">+parse: ingredient: {"abc": "literal-string"}</span>
<span id="L197" class="LineNr">197 </span><span class="traceContains">+parse: product: {1: ("address" "array" "character")}</span>
<span id="L198" class="LineNr">198 </span>
<span id="L199" class="LineNr">199 </span><span class="Delimiter">:(scenario string_literal_escapes_newlines_in_trace)</span>
<span id="L200" class="LineNr">200 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L201" class="LineNr">201 </span> copy [abc
<span id="L202" class="LineNr">202 </span><span class="muRecipe">def</span>]
<span id="L203" class="LineNr">203 </span>]
<span id="L204" class="LineNr">204 </span><span class="traceContains">+parse: ingredient: {"abc\ndef": "literal-string"}</span>
<span id="L205" class="LineNr">205 </span>
<span id="L206" class="LineNr">206 </span><span class="Delimiter">:(scenario string_literal_can_skip_past_comments)</span>
<span id="L207" class="LineNr">207 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L208" class="LineNr">208 </span> copy [
<span id="L209" class="LineNr">209 </span> <span class="Comment"># ']' inside comment</span>
<span id="L210" class="LineNr">210 </span> bar
<span id="L211" class="LineNr">211 </span> ]
<span id="L212" class="LineNr">212 </span>]
<span id="L213" class="LineNr">213 </span><span class="traceContains">+parse: ingredient: {"\n # ']' inside comment\n bar\n ": "literal-string"}</span>
<span id="L214" class="LineNr">214 </span>
<span id="L215" class="LineNr">215 </span><span class="Delimiter">:(scenario string_literal_empty)</span>
<span id="L216" class="LineNr">216 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L217" class="LineNr">217 </span> copy []
<span id="L218" class="LineNr">218 </span>]
<span id="L219" class="LineNr">219 </span><span class="traceContains">+parse: ingredient: {"": "literal-string"}</span>
<span id="L220" class="LineNr">220 </span>
<span id="L221" class="LineNr">221 </span><span class="Delimiter">:(scenario multiple_unfinished_recipes)</span>
<span id="L222" class="LineNr">222 </span><span class="Special">% Hide_errors = true;</span>
<span id="L223" class="LineNr">223 </span><span class="muRecipe">def</span> f1 [
<span id="L224" class="LineNr">224 </span><span class="muRecipe">def</span> f2 [
<span id="L225" class="LineNr">225 </span><span class="traceContains">+error: unbalanced '['</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|