comparison: src/highlighter.c
src/highlighter.c
- changeset 75
- c72b250866ab
- parent 67
- 5da2cb5aea6b
- child 76
- 44c7423d6ce2
equal
deleted
inserted
replaced
| 74:831928419249 | 75:c72b250866ab |
|---|---|
| 27 * | 27 * |
| 28 */ | 28 */ |
| 29 | 29 |
| 30 #include "highlighter.h" | 30 #include "highlighter.h" |
| 31 | 31 |
| 32 #include <stdlib.h> | |
| 33 #include <stdio.h> | |
| 34 #include <string.h> | 32 #include <string.h> |
| 35 #include <ctype.h> | 33 #include <ctype.h> |
| 36 | 34 |
| 37 #include <cx/string.h> | 35 #include <cx/string.h> |
| 36 #include <cx/printf.h> | |
| 38 | 37 |
| 39 static void put_htmlescaped(CxBuffer *dest, char c) { | 38 static void put_htmlescaped(CxBuffer *dest, char c) { |
| 40 if (c == '>') { | 39 if (c == '>') { |
| 41 cxBufferPutString(dest, ">"); | 40 cxBufferPutString(dest, ">"); |
| 42 } else if (c == '<') { | 41 } else if (c == '<') { |
| 104 CxBuffer *wbuf = &hd->primary_buffer; | 103 CxBuffer *wbuf = &hd->primary_buffer; |
| 105 CxBuffer *ifilebuf = &hd->secondary_buffer; | 104 CxBuffer *ifilebuf = &hd->secondary_buffer; |
| 106 | 105 |
| 107 /* local information */ | 106 /* local information */ |
| 108 size_t sp = (size_t)-1; | 107 size_t sp = (size_t)-1; |
| 108 | |
| 109 int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; | 109 int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; |
| 110 char quote = '\0'; | 110 char quote = '\0'; |
| 111 int isescaping = 0; | 111 int isescaping = 0; |
| 112 | 112 |
| 113 int continuation_enabled = 0; | |
| 114 const char* current_highlight = NULL; | |
| 115 | |
| 116 /* define convenience macros */ | |
| 117 #define start_span(cl) \ | |
| 118 current_highlight = cl; \ | |
| 119 cx_bprintf(dest, "<span class=\"c2html-%s\">", current_highlight) | |
| 120 #define stop_span \ | |
| 121 current_highlight = NULL;\ | |
| 122 cxBufferPutString(dest, "</span>") | |
| 123 | |
| 113 /* continue a multi line comment highlighting */ | 124 /* continue a multi line comment highlighting */ |
| 114 if (hd->multiline_comment) { | 125 if (hd->multiline_comment) { |
| 115 iscomment = 1; | 126 iscomment = 1; |
| 116 cxBufferPutString(dest, "<span class=\"c2html-comment\">"); | 127 start_span("comment"); |
| 128 } | |
| 129 | |
| 130 /* continue highlighting in case of line continuation */ | |
| 131 if (hd->continue_highlight) { | |
| 132 start_span(hd->continue_highlight); | |
| 133 hd->continue_highlight = NULL; | |
| 134 isinclude = hd->continuation_info & 0x1; | |
| 135 isstring = hd->continuation_info & 0x2; | |
| 136 iscomment = hd->continuation_info & 0x4; | |
| 137 if (hd->continuation_info & 0x10) { | |
| 138 quote = '\''; | |
| 139 } else if (hd->continuation_info & 0x20) { | |
| 140 quote = '\"'; | |
| 141 } | |
| 142 hd->continuation_info = 0; | |
| 117 } | 143 } |
| 118 | 144 |
| 119 char c; | 145 char c; |
| 120 do { | 146 do { |
| 121 c = src[++sp]; | 147 c = src[++sp]; |
| 122 if (c == '\r') continue; | 148 if (c == '\r') continue; |
| 149 | |
| 150 /* line continuation */ | |
| 151 if (c == '\\') { | |
| 152 /* currently do not support continuations in user includes */ | |
| 153 // TODO: also support user includes | |
| 154 if (!parseinclude) { | |
| 155 continuation_enabled = 1; | |
| 156 } | |
| 157 } else if (continuation_enabled) { | |
| 158 if (!isspace(c)) { | |
| 159 continuation_enabled = 0; | |
| 160 } else if (c == '\n') { | |
| 161 cxBufferPut(dest, '\n'); | |
| 162 hd->continue_highlight = current_highlight; | |
| 163 hd->continuation_info = \ | |
| 164 isinclude | \ | |
| 165 (isstring << 1) | \ | |
| 166 (iscomment << 2); | |
| 167 if (quote == '\'') { | |
| 168 hd->continuation_info |= 0x10; | |
| 169 } else if (quote == '\"') { | |
| 170 hd->continuation_info |= 0x20; | |
| 171 } | |
| 172 stop_span; | |
| 173 continue; | |
| 174 } | |
| 175 } | |
| 123 | 176 |
| 124 /* comments */ | 177 /* comments */ |
| 125 if (!isstring && c == '/') { | 178 if (!isstring && c == '/') { |
| 126 if (hd->multiline_comment && sp > 0 && src[sp-1] == '*') { | 179 if (hd->multiline_comment && sp > 0 && src[sp-1] == '*') { |
| 127 iscomment = 0; | 180 iscomment = 0; |
| 128 hd->multiline_comment = 0; | 181 hd->multiline_comment = 0; |
| 129 cxBufferPutString(dest, "/</span>"); | 182 cxBufferPut(dest, '/'); |
| 183 stop_span; | |
| 130 continue; | 184 continue; |
| 131 } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { | 185 } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { |
| 132 iscomment = 1; | 186 iscomment = 1; |
| 133 hd->multiline_comment = (src[sp+1] == '*'); | 187 hd->multiline_comment = (src[sp+1] == '*'); |
| 134 cxBufferPutString(dest, "<span class=\"c2html-comment\">"); | 188 start_span("comment"); |
| 135 } | 189 } |
| 136 } | 190 } |
| 137 | 191 |
| 138 if (iscomment) { | 192 if (iscomment) { |
| 139 if (c == '\n') { | 193 if (c == '\n') { |
| 140 cxBufferPutString(dest, "</span>\n"); | 194 stop_span; |
| 195 cxBufferPut(dest, '\n'); | |
| 141 } else { | 196 } else { |
| 142 put_htmlescaped(dest, c); | 197 put_htmlescaped(dest, c); |
| 143 } | 198 } |
| 144 } else if (isinclude) { | 199 } else if (isinclude) { |
| 145 if (c == '<') { | 200 if (c == '<') { |
| 146 cxBufferPutString(dest, | 201 start_span("stdinclude"); |
| 147 "<span class=\"c2html-stdinclude\"><"); | 202 cxBufferPutString(dest, "<"); |
| 148 } else if (c == '\"') { | 203 } else if (c == '\"') { |
| 149 if (parseinclude) { | 204 if (parseinclude) { |
| 150 cxBufferPutString(dest, "\">"); | 205 cxBufferPutString(dest, "\">"); |
| 151 cxBufferWrite(ifilebuf->space, 1, ifilebuf->size, dest); | 206 cxBufferWrite(ifilebuf->space, 1, ifilebuf->size, dest); |
| 152 cxBufferPutString(dest, "\"</a>"); | 207 cxBufferPutString(dest, "\"</a>"); |
| 156 "<a class=\"c2html-userinclude\" href=\""); | 211 "<a class=\"c2html-userinclude\" href=\""); |
| 157 cxBufferPut(ifilebuf, '\"'); | 212 cxBufferPut(ifilebuf, '\"'); |
| 158 parseinclude = 1; | 213 parseinclude = 1; |
| 159 } | 214 } |
| 160 } else if (c == '>') { | 215 } else if (c == '>') { |
| 161 cxBufferPutString(dest, "></span>"); | 216 cxBufferPutString(dest, ">"); |
| 217 stop_span; | |
| 162 } else { | 218 } else { |
| 163 if (parseinclude) { | 219 if (parseinclude) { |
| 164 cxBufferPut(ifilebuf, c); | 220 cxBufferPut(ifilebuf, c); |
| 165 } | 221 } |
| 166 put_htmlescaped(dest, c); | 222 put_htmlescaped(dest, c); |
| 170 if (!isescaping && (c == '\'' || c == '\"')) { | 226 if (!isescaping && (c == '\'' || c == '\"')) { |
| 171 if (isstring) { | 227 if (isstring) { |
| 172 put_htmlescaped(dest, c); | 228 put_htmlescaped(dest, c); |
| 173 if (c == quote) { | 229 if (c == quote) { |
| 174 isstring = 0; | 230 isstring = 0; |
| 175 cxBufferPutString(dest, "</span>"); | 231 stop_span; |
| 176 } else { | 232 } else { |
| 177 put_htmlescaped(dest, c); | 233 put_htmlescaped(dest, c); |
| 178 } | 234 } |
| 179 } else { | 235 } else { |
| 180 isstring = 1; | 236 isstring = 1; |
| 181 quote = c; | 237 quote = c; |
| 182 cxBufferPutString(dest, "<span class=\"c2html-string\">"); | 238 start_span("string"); |
| 183 put_htmlescaped(dest, c); | 239 put_htmlescaped(dest, c); |
| 184 } | 240 } |
| 185 } else { | 241 } else { |
| 186 if (isstring) { | 242 if (isstring) { |
| 187 put_htmlescaped(dest, c); | 243 put_htmlescaped(dest, c); |
| 193 if (wbuf->size > 0) { | 249 if (wbuf->size > 0) { |
| 194 cxstring word = cx_strn(wbuf->space, wbuf->size); | 250 cxstring word = cx_strn(wbuf->space, wbuf->size); |
| 195 int closespan = 1; | 251 int closespan = 1; |
| 196 cxstring typesuffix = CX_STR("_t"); | 252 cxstring typesuffix = CX_STR("_t"); |
| 197 if (check_keyword(word, ckeywords)) { | 253 if (check_keyword(word, ckeywords)) { |
| 198 cxBufferPutString(dest, | 254 start_span("keyword"); |
| 199 "<span class=\"c2html-keyword\">"); | |
| 200 } else if (cx_strsuffix(word, typesuffix)) { | 255 } else if (cx_strsuffix(word, typesuffix)) { |
| 201 cxBufferPutString(dest, | 256 start_span("type"); |
| 202 "<span class=\"c2html-type\">"); | |
| 203 } else if (word.ptr[0] == '#') { | 257 } else if (word.ptr[0] == '#') { |
| 204 isinclude = !cx_strcmp(word, CX_STR("#include")); | 258 isinclude = !cx_strcmp(word, CX_STR("#include")); |
| 205 cxBufferPutString(dest, | 259 start_span("directive"); |
| 206 "<span class=\"c2html-directive\">"); | |
| 207 } else if (check_capsonly(word)) { | 260 } else if (check_capsonly(word)) { |
| 208 cxBufferPutString(dest, | 261 start_span("macroconst"); |
| 209 "<span class=\"c2html-macroconst\">"); | |
| 210 } else { | 262 } else { |
| 211 closespan = 0; | 263 closespan = 0; |
| 212 } | 264 } |
| 213 put_htmlescapedstr(dest, word); | 265 put_htmlescapedstr(dest, word); |
| 214 if (closespan) { | 266 if (closespan) { |
| 215 cxBufferPutString(dest, "</span>"); | 267 stop_span; |
| 216 } | 268 } |
| 217 } | 269 } |
| 218 wbuf->pos = wbuf->size = 0; /* reset word buffer */ | 270 wbuf->pos = wbuf->size = 0; /* reset word buffer */ |
| 219 | 271 |
| 220 /* write current character */ | 272 /* write current character */ |
| 223 } | 275 } |
| 224 | 276 |
| 225 isescaping = !isescaping & (c == '\\'); | 277 isescaping = !isescaping & (c == '\\'); |
| 226 } | 278 } |
| 227 } while (c && c != '\n'); | 279 } while (c && c != '\n'); |
| 280 | |
| 281 #undef start_span | |
| 282 #undef stop_span | |
| 228 } | 283 } |
| 229 | 284 |
| 230 /* Java Highlighter */ | 285 /* Java Highlighter */ |
| 231 | 286 |
| 232 static const char* jkeywords[] = { | 287 static const char* jkeywords[] = { |
