Mercurial > projects > dil
annotate trunk/src/cmd/Generate.d @ 576:0df647660e76
Moved Lexer.d to new package 'lexer'.
author | Aziz K?ksal <aziz.koeksal@gmail.com> |
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date | Sat, 05 Jan 2008 16:53:27 +0100 |
parents | 996041463028 |
children | c769bc239006 |
rev | line source |
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363 | 1 /++ |
2 Author: Aziz Köksal | |
3 License: GPL3 | |
4 +/ | |
5 module cmd.Generate; | |
6 import dil.SyntaxTree; | |
7 import dil.Token; | |
576
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8 import dil.Parser, dil.lexer.Lexer; |
363 | 9 import dil.File; |
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10 import tango.io.Print; |
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11 import common; |
363 | 12 |
13 enum DocOption | |
14 { | |
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15 Empty, |
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16 Tokens = 1, |
363 | 17 Syntax = 1<<1, |
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18 HTML = 1<<2, |
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19 XML = 1<<3 |
363 | 20 } |
21 | |
364 | 22 void execute(string fileName, DocOption options) |
23 { | |
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24 assert(options != DocOption.Empty); |
364 | 25 if (options & DocOption.Syntax) |
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26 syntaxToDoc(fileName, Stdout, options); |
364 | 27 else |
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28 tokensToDoc(fileName, Stdout, options); |
364 | 29 } |
30 | |
363 | 31 char[] xml_escape(char[] text) |
32 { | |
33 char[] result; | |
34 foreach(c; text) | |
35 switch(c) | |
36 { | |
37 case '<': result ~= "<"; break; | |
38 case '>': result ~= ">"; break; | |
39 case '&': result ~= "&"; break; | |
40 default: result ~= c; | |
41 } | |
42 return result; | |
43 } | |
44 | |
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45 |
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46 /// Find object in subject and return position. |
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47 /// Returns -1 if no match was found. |
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48 int find(char[] subject, char[] object) |
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49 { |
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50 if (object.length > subject.length) |
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51 return -1; |
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52 foreach (i, c; subject) |
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53 { |
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54 if (c == object[0]) |
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55 { |
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56 if (object.length > (subject.length - i)) |
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57 return -1; |
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58 if (object == subject[i..i+object.length]) |
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59 return i; |
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60 } |
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61 } |
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62 return -1; |
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63 } |
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64 |
363 | 65 char[] getShortClassName(Node n) |
66 { | |
67 static char[][] name_table; | |
68 if (name_table is null) | |
69 name_table = new char[][NodeKind.max+1]; | |
70 char[] name = name_table[n.kind]; | |
71 if (name !is null) | |
72 return name; | |
73 | |
74 name = n.classinfo.name; | |
75 name = name[find(name, ".")+1 .. $]; // Remove package name | |
76 name = name[find(name, ".")+1 .. $]; // Remove module name | |
77 char[] remove; | |
78 switch (n.category) | |
79 { | |
80 alias NodeCategory NC; | |
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81 case NC.Declaration: |
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82 if (n.kind == NodeKind.Declarations) |
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83 return name; |
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84 remove = "Declaration"; |
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85 break; |
363 | 86 case NC.Statement: |
87 if (n.kind == NodeKind.Statements) | |
88 return name; | |
89 remove = "Statement"; | |
90 break; | |
91 case NC.Expression: remove = "Expression"; break; | |
92 case NC.Type: remove = "Type"; break; | |
93 case NC.Other: return name; | |
94 default: | |
95 } | |
96 // Remove common suffix. | |
97 auto idx = find(name, remove); | |
98 if (idx != -1) | |
99 name = name[0 .. idx]; | |
100 // Store the name. | |
101 name_table[n.kind] = name; | |
102 return name; | |
103 } | |
104 | |
105 enum DocPart | |
106 { | |
107 Head, | |
108 CompBegin, | |
109 CompEnd, | |
110 Error, | |
111 SyntaxBegin, | |
112 SyntaxEnd, | |
113 SrcBegin, | |
114 SrcEnd, | |
115 Tail, | |
116 // Tokens: | |
117 Identifier, | |
118 Comment, | |
119 StringLiteral, | |
120 CharLiteral, | |
121 Operator, | |
122 LorG, | |
123 LessEqual, | |
124 GreaterEqual, | |
125 AndLogical, | |
126 OrLogical, | |
127 NotEqual, | |
128 Not, | |
129 Number, | |
130 Bracket, | |
131 SpecialToken, | |
132 Shebang, | |
133 Keyword, | |
134 HLineBegin, | |
135 HLineEnd, | |
136 Filespec, | |
137 } | |
138 | |
139 auto html_tags = [ | |
140 // Head | |
141 `<html>`\n | |
142 `<head>`\n | |
143 `<meta http-equiv="Content-Type" content="text/html; charset=utf-8">`\n | |
144 `<link href="dil_html.css" rel="stylesheet" type="text/css">`\n | |
145 `</head>`\n | |
146 `<body>`[], | |
147 // CompBegin | |
148 `<div class="compilerinfo">`, | |
149 // CompEnd | |
150 `</div>`, | |
151 // Error | |
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152 `<p class="error {0}">{1}({2}){3}: {4}</p>`, |
363 | 153 // SyntaxBegin |
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154 `<span class="{0} {1}">`, |
363 | 155 // SyntaxEnd |
156 `</span>`, | |
157 // SrcBegin | |
158 `<pre class="sourcecode">`, | |
159 // SrcEnd | |
160 `</pre>`, | |
161 // Tail | |
162 `</html>`, | |
163 // Identifier | |
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164 `<span class="i">{0}</span>`, |
363 | 165 // Comment |
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166 `<span class="c{0}">{1}</span>`, |
363 | 167 // StringLiteral |
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168 `<span class="sl">{0}</span>`, |
363 | 169 // CharLiteral |
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170 `<span class="cl">{0}</span>`, |
363 | 171 // Operator |
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172 `<span class="op">{0}</span>`, |
363 | 173 // LorG |
174 `<span class="oplg"><></span>`, | |
175 // LessEqual | |
176 `<span class="ople"><=</span>`, | |
177 // GreaterEqual | |
178 `<span class="opge">>=</span>`, | |
179 // AndLogical | |
180 `<span class="opaa">&&</span>`, | |
181 // OrLogical | |
182 `<span class="opoo">||</span>`, | |
183 // NotEqual | |
184 `<span class="opne">!=</span>`, | |
185 // Not | |
186 `<span class="opn">!</span>`, | |
187 // Number | |
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188 `<span class="n">{0}</span>`, |
363 | 189 // Bracket |
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190 `<span class="br">{0}</span>`, |
363 | 191 // SpecialToken |
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192 `<span class="st">{0}</span>`, |
363 | 193 // Shebang |
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194 `<span class="shebang">{0}</span>`, |
363 | 195 // Keyword |
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196 `<span class="k">{0}</span>`, |
363 | 197 // HLineBegin |
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198 `<span class="hl">`, |
363 | 199 // HLineEnd |
200 "</span>", | |
201 // Filespec | |
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202 `<span class="fs">{0}</span>`, |
363 | 203 ]; |
204 | |
205 auto xml_tags = [ | |
206 // Head | |
207 `<?xml version="1.0"?>`\n | |
208 `<?xml-stylesheet href="dil_xml.css" type="text/css"?>`\n | |
209 `<root>`[], | |
210 // CompBegin | |
211 `<compilerinfo>`, | |
212 // CompEnd | |
213 `</compilerinfo>`, | |
214 // Error | |
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215 `<error t="{0}">{1}({2}){3}: {4}</error>`, |
363 | 216 // SyntaxBegin |
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217 `<{0} t="{1}">`, |
363 | 218 // SyntaxEnd |
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219 `</{0}>`, |
363 | 220 // SrcBegin |
221 `<sourcecode>`, | |
222 // SrcEnd | |
223 `</sourcecode>`, | |
224 // Tail | |
225 `</root>`, | |
226 // Identifier | |
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227 "<i>{0}</i>", |
363 | 228 // Comment |
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229 `<c t="{0}">{1}</c>`, |
363 | 230 // StringLiteral |
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231 "<sl>{0}</sl>", |
363 | 232 // CharLiteral |
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233 "<cl>{0}</cl>", |
363 | 234 // Operator |
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235 "<op>{0}</op>", |
363 | 236 // LorG |
237 `<op t="lg"><></op>`, | |
238 // LessEqual | |
239 `<op t="le"><=</op>`, | |
240 // GreaterEqual | |
241 `<op t="ge">>=</op>`, | |
242 // AndLogical | |
243 `<op t="aa">&&</op>`, | |
244 // OrLogical | |
245 `<op t="oo">||</op>`, | |
246 // NotEqual | |
247 `<op t="ne">!=</op>`, | |
248 // Not | |
249 `<op t="n">!</op>`, | |
250 // Number | |
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251 "<n>{0}</n>", |
363 | 252 // Bracket |
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253 "<br>{0}</br>", |
363 | 254 // SpecialToken |
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255 "<st>{0}</st>", |
363 | 256 // Shebang |
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257 "<shebang>{0}</shebang>", |
363 | 258 // Keyword |
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259 "<k>{0}</k>", |
363 | 260 // HLineBegin |
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261 "<hl>", |
363 | 262 // HLineEnd |
263 "</hl>", | |
264 // Filespec | |
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265 "<fs>{0}</fs>", |
363 | 266 ]; |
267 | |
268 static assert(html_tags.length == DocPart.max+1); | |
269 static assert(xml_tags.length == DocPart.max+1); | |
270 | |
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271 void syntaxToDoc(string fileName, Print!(char) print, DocOption options) |
363 | 272 { |
273 auto tags = options & DocOption.HTML ? html_tags : xml_tags; | |
274 auto sourceText = loadFile(fileName); | |
275 auto parser = new Parser(sourceText, fileName); | |
368 | 276 auto root = parser.start(); |
363 | 277 auto lx = parser.lx; |
278 | |
279 auto token = lx.head; | |
280 | |
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281 print(tags[DocPart.Head]~\n); |
363 | 282 // Output error messages. |
283 if (lx.errors.length || parser.errors.length) | |
284 { | |
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285 print(tags[DocPart.CompBegin]~\n); |
363 | 286 foreach (error; lx.errors) |
287 { | |
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288 print.formatln(tags[DocPart.Error], "L", error.filePath, Format("{0},{1}", error.loc, error.col), "L", xml_escape(error.getMsg)); |
363 | 289 } |
290 foreach (error; parser.errors) | |
291 { | |
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292 print.formatln(tags[DocPart.Error], "P", error.filePath, Format("{0},{1}", error.loc, error.col), "P", xml_escape(error.getMsg)); |
363 | 293 } |
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294 print(tags[DocPart.CompEnd]~\n); |
363 | 295 } |
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296 print(tags[DocPart.SrcBegin]); |
363 | 297 |
298 Node[][Token*] beginNodes, endNodes; | |
299 | |
300 void populateAAs(Node[] nodes) | |
301 { | |
302 foreach (node; nodes) | |
303 { | |
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304 assert(delegate bool(){ |
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305 foreach (child; node.children) |
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306 if (child is null) |
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307 return false; |
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308 return true; |
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309 }() == true, Format("Node '{0}' has a null child", node.classinfo.name) |
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310 ); |
363 | 311 auto begin = node.begin; |
312 if (begin) | |
313 { | |
314 auto end = node.end; | |
315 assert(end); | |
316 beginNodes[begin] ~= node; | |
317 endNodes[end] ~= node; | |
318 } | |
396
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319 |
363 | 320 if (node.children.length) |
321 populateAAs(node.children); | |
322 } | |
323 } | |
396
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324 assert(delegate bool(){ |
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325 foreach (child; root.children) |
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326 if (child is null) |
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327 return false; |
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328 return true; |
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329 }() == true, Format("Root node has a null child") |
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330 ); |
363 | 331 populateAAs(root.children); |
332 | |
333 char[] getTag(NodeCategory nc) | |
334 { | |
335 char[] tag; | |
336 switch (nc) | |
337 { | |
338 alias NodeCategory NC; | |
339 case NC.Declaration: tag = "d"; break; | |
340 case NC.Statement: tag = "s"; break; | |
341 case NC.Expression: tag = "e"; break; | |
342 case NC.Type: tag = "t"; break; | |
343 case NC.Other: tag = "o"; break; | |
344 default: | |
345 } | |
346 return tag; | |
347 } | |
348 | |
349 // Traverse linked list and print tokens. | |
350 while (token.type != TOK.EOF) | |
351 { | |
352 token = token.next; | |
353 | |
394
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354 // Print whitespace. |
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355 if (token.ws) |
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356 print(token.ws[0..token.start - token.ws]); |
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357 |
363 | 358 Node[]* nodes = token in beginNodes; |
359 | |
360 if (nodes) | |
361 { | |
362 foreach (node; *nodes) | |
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363 print.format(tags[DocPart.SyntaxBegin], getTag(node.category), getShortClassName(node)); |
363 | 364 } |
365 | |
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366 printToken(token, tags, print); |
363 | 367 |
368 nodes = token in endNodes; | |
369 | |
370 if (nodes) | |
371 { | |
372 foreach_reverse (node; *nodes) | |
373 if (options & DocOption.HTML) | |
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374 print(tags[DocPart.SyntaxEnd]); |
363 | 375 else |
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376 print.format(tags[DocPart.SyntaxEnd], getTag(node.category)); |
363 | 377 } |
378 } | |
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379 print(\n~tags[DocPart.SrcEnd])(\n~tags[DocPart.Tail]); |
363 | 380 } |
381 | |
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382 void tokensToDoc(string fileName, Print!(char) print, DocOption options) |
363 | 383 { |
384 auto tags = options & DocOption.HTML ? html_tags : xml_tags; | |
385 auto sourceText = loadFile(fileName); | |
386 auto lx = new Lexer(sourceText, fileName); | |
387 | |
388 auto token = lx.getTokens(); | |
389 | |
391
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390 print(tags[DocPart.Head]~\n); |
363 | 391 |
392 if (lx.errors.length) | |
393 { | |
391
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394 print(tags[DocPart.CompBegin]~\n); |
363 | 395 foreach (error; lx.errors) |
396 { | |
422
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397 print.formatln(tags[DocPart.Error], "L", error.filePath, Format("{0},{1}", error.loc, error.col), "L", xml_escape(error.getMsg)); |
363 | 398 } |
391
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399 print(tags[DocPart.CompEnd]~\n); |
363 | 400 } |
391
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401 print(tags[DocPart.SrcBegin]); |
363 | 402 |
403 // Traverse linked list and print tokens. | |
404 while (token.type != TOK.EOF) | |
405 { | |
406 token = token.next; | |
394
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407 // Print whitespace. |
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408 if (token.ws) |
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409 print(token.ws[0..token.start - token.ws]); |
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410 printToken(token, tags, print); |
363 | 411 } |
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412 print(\n~tags[DocPart.SrcEnd])(\n~tags[DocPart.Tail]); |
363 | 413 } |
414 | |
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415 void printToken(Token* token, string[] tags, Print!(char) print) |
363 | 416 { |
417 alias DocPart DP; | |
418 string srcText = xml_escape(token.srcText); | |
419 | |
420 switch(token.type) | |
421 { | |
422 case TOK.Identifier: | |
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423 print.format(tags[DP.Identifier], srcText); |
363 | 424 break; |
425 case TOK.Comment: | |
426 string t; | |
427 switch (token.start[1]) | |
428 { | |
429 case '/': t = "l"; break; | |
430 case '*': t = "b"; break; | |
431 case '+': t = "n"; break; | |
432 default: | |
433 assert(0); | |
434 } | |
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435 print.format(tags[DP.Comment], t, srcText); |
363 | 436 break; |
437 case TOK.String: | |
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438 print.format(tags[DP.StringLiteral], srcText); |
363 | 439 break; |
507
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440 case TOK.CharLiteral: |
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441 print.format(tags[DP.CharLiteral], srcText); |
363 | 442 break; |
443 case TOK.Assign, TOK.Equal, | |
444 TOK.Less, TOK.Greater, | |
445 TOK.LShiftAssign, TOK.LShift, | |
446 TOK.RShiftAssign, TOK.RShift, | |
447 TOK.URShiftAssign, TOK.URShift, | |
448 TOK.OrAssign, TOK.OrBinary, | |
449 TOK.AndAssign, TOK.AndBinary, | |
450 TOK.PlusAssign, TOK.PlusPlus, TOK.Plus, | |
451 TOK.MinusAssign, TOK.MinusMinus, TOK.Minus, | |
452 TOK.DivAssign, TOK.Div, | |
453 TOK.MulAssign, TOK.Mul, | |
454 TOK.ModAssign, TOK.Mod, | |
455 TOK.XorAssign, TOK.Xor, | |
456 TOK.CatAssign, | |
457 TOK.Tilde, | |
458 TOK.Unordered, | |
459 TOK.UorE, | |
460 TOK.UorG, | |
461 TOK.UorGorE, | |
462 TOK.UorL, | |
463 TOK.UorLorE, | |
464 TOK.LorEorG: | |
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465 print.format(tags[DP.Operator], srcText); |
363 | 466 break; |
467 case TOK.LorG: | |
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468 print(tags[DP.LorG]); |
363 | 469 break; |
470 case TOK.LessEqual: | |
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471 print(tags[DP.LessEqual]); |
363 | 472 break; |
473 case TOK.GreaterEqual: | |
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474 print(tags[DP.GreaterEqual]); |
363 | 475 break; |
476 case TOK.AndLogical: | |
391
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477 print(tags[DP.AndLogical]); |
363 | 478 break; |
479 case TOK.OrLogical: | |
391
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480 print(tags[DP.OrLogical]); |
363 | 481 break; |
482 case TOK.NotEqual: | |
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483 print(tags[DP.NotEqual]); |
363 | 484 break; |
485 case TOK.Not: | |
486 // Check if this is part of a template instantiation. | |
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487 // TODO: comments aren't skipped. Use Token.nextNWS and Token.prevNWS |
363 | 488 if (token.prev.type == TOK.Identifier && token.next.type == TOK.LParen) |
489 goto default; | |
391
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490 print(tags[DP.Not]); |
363 | 491 break; |
492 case TOK.Int32, TOK.Int64, TOK.Uint32, TOK.Uint64, | |
493 TOK.Float32, TOK.Float64, TOK.Float80, | |
494 TOK.Imaginary32, TOK.Imaginary64, TOK.Imaginary80: | |
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495 print.format(tags[DP.Number], srcText); |
363 | 496 break; |
497 case TOK.LParen, TOK.RParen, TOK.LBracket, | |
498 TOK.RBracket, TOK.LBrace, TOK.RBrace: | |
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499 print.format(tags[DP.Bracket], srcText); |
363 | 500 break; |
501 case TOK.Shebang: | |
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502 print.format(tags[DP.Shebang], srcText); |
363 | 503 break; |
504 case TOK.HashLine: | |
505 void printWS(char* start, char* end) | |
506 { | |
507 if (start != end) | |
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508 print(start[0 .. end - start]); |
363 | 509 } |
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510 print(tags[DP.HLineBegin]); |
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511 auto num = token.tokLineNum; |
388
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512 if (num is null) |
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513 { |
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514 print(token.srcText); |
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515 print(tags[DP.HLineEnd]); |
388
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516 break; |
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517 } |
363 | 518 // Print whitespace between #line and number |
388
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519 auto ptr = token.start; |
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520 printWS(ptr, num.start); // prints "#line" as well |
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521 printToken(num, tags, print); |
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522 if (token.tokLineFilespec) |
363 | 523 { |
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524 auto filespec = token.tokLineFilespec; |
363 | 525 // Print whitespace between number and filespec |
526 printWS(num.end, filespec.start); | |
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527 print.format(tags[DP.Filespec], xml_escape(filespec.srcText)); |
363 | 528 |
529 ptr = filespec.end; | |
530 } | |
531 else | |
532 ptr = num.end; | |
533 // Print remaining whitespace | |
534 printWS(ptr, token.end); | |
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535 print(tags[DP.HLineEnd]); |
363 | 536 break; |
537 default: | |
538 if (token.isKeyword()) | |
391
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539 print.format(tags[DP.Keyword], srcText); |
363 | 540 else if (token.isSpecialToken) |
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541 print.format(tags[DP.SpecialToken], srcText); |
363 | 542 else |
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543 print(srcText); |
363 | 544 } |
545 } |