Tue, 23 Aug 2016 17:24:58 +0200
highlighter now use the UcxBuffer API for writing to the destination buffer
21 | 1 | /* |
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
3 | * | |
35 | 4 | * Copyright 2016 Mike Becker. All rights reserved. |
21 | 5 | * |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * | |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
26 | * POSSIBILITY OF SUCH DAMAGE. | |
27 | * | |
28 | */ | |
29 | ||
30 | #include "ccodegen.h" | |
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31 | #include "ucx/utils.h" |
21 | 32 | #include <string.h> |
33 | #include <ctype.h> | |
34 | ||
35 | const char* ckeywords[] = { | |
36 | "auto", "break", "case", "char", "const", "continue", "default", "do", | |
37 | "double", "else", "enum", "extern", "float", "for", "goto", "if", "int", | |
38 | "long", "register", "return", "short", "signed", "sizeof", "static", | |
39 | "struct", "switch", "typedef", "union", "unsigned", "void", "volatile", | |
40 | "while", NULL | |
41 | }; | |
42 | ||
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43 | void c_highlighter(char *src, UcxBuffer *dest, int *multiline_comment) { |
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44 | /* TODO: try to replace these buffers */ |
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45 | char wordbuf[WORDBUF_SIZE]; |
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46 | sstr_t word; |
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47 | word.ptr = wordbuf; word.length = 0; |
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48 | |
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49 | char includefilebuf[512]; |
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50 | sstr_t includefile; |
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51 | includefile.ptr = includefilebuf; |
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52 | includefile.length = 0; |
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53 | |
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54 | size_t sp = (size_t)-1; |
21 | 55 | int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; |
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56 | char quote = '\0'; |
21 | 57 | int isescaping = 0; |
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58 | |
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59 | /* continue a multi line comment highlighting */ |
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60 | if (*multiline_comment) { |
21 | 61 | iscomment = 1; |
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62 | ucx_buffer_puts(dest, "<span class=\"c2html-comment\">"); |
21 | 63 | } |
64 | ||
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65 | char c; |
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66 | do { |
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67 | c = src[++sp]; |
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68 | if (!c) break; |
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69 | |
21 | 70 | /* comments */ |
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71 | if (!isstring && c == '/') { |
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72 | if (*multiline_comment && sp > 0 && src[sp-1] == '*') { |
21 | 73 | iscomment = 0; |
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74 | *multiline_comment = 0; |
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75 | ucx_buffer_puts(dest, "/</span>"); |
21 | 76 | continue; |
77 | } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { | |
78 | iscomment = 1; | |
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79 | *multiline_comment = (src[sp+1] == '*'); |
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80 | ucx_buffer_puts(dest, "<span class=\"c2html-comment\">"); |
21 | 81 | } |
82 | } | |
83 | ||
84 | if (iscomment) { | |
85 | if (c == '\n') { | |
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86 | ucx_buffer_puts(dest, "</span>\n"); |
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87 | } else { |
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88 | put_htmlescaped(dest, c); |
21 | 89 | } |
90 | } else if (isinclude) { | |
91 | if (c == '<') { | |
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92 | ucx_buffer_puts(dest, |
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93 | "<span class=\"c2html-stdinclude\"><"); |
21 | 94 | } else if (c == '\"') { |
95 | if (parseinclude) { | |
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96 | ucx_bprintf(dest, "\">%.*s\"</a>", |
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97 | includefile.length, includefile.ptr); |
21 | 98 | parseinclude = 0; |
99 | } else { | |
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100 | ucx_buffer_puts(dest, |
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101 | "<a class=\"c2html-userinclude\" href=\""); |
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102 | includefile.length = 0; |
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103 | includefile.ptr[includefile.length++] = '\"'; |
21 | 104 | parseinclude = 1; |
105 | } | |
106 | } else if (c == '>') { | |
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107 | ucx_buffer_puts(dest, "></span>"); |
21 | 108 | } else { |
109 | if (parseinclude) { | |
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110 | includefile.ptr[includefile.length++] = c; |
21 | 111 | } |
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112 | put_htmlescaped(dest, c); |
21 | 113 | } |
114 | } else { | |
115 | /* strings */ | |
116 | if (!isescaping && (c == '\'' || c == '\"')) { | |
117 | if (isstring) { | |
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118 | put_htmlescaped(dest, c); |
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119 | if (c == quote) { |
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120 | isstring = 0; |
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121 | ucx_buffer_puts(dest, "</span>"); |
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122 | } else { |
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123 | put_htmlescaped(dest, c); |
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124 | } |
21 | 125 | } else { |
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126 | isstring = 1; |
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127 | quote = c; |
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128 | ucx_buffer_puts(dest, "<span class=\"c2html-string\">"); |
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129 | put_htmlescaped(dest, c); |
21 | 130 | } |
131 | } else { | |
132 | if (isstring) { | |
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133 | put_htmlescaped(dest, c); |
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134 | } else if (!check_alnumex(c)) { |
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135 | if (word.length > 0 && word.length < WORDBUF_SIZE) { |
21 | 136 | int closespan = 1; |
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137 | sstr_t typesuffix = ST("_t"); |
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138 | if (check_keyword(word, ckeywords)) { |
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139 | ucx_buffer_puts(dest, |
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140 | "<span class=\"c2html-keyword\">"); |
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141 | } else if (sstrsuffix(word, typesuffix)) { |
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142 | ucx_buffer_puts(dest, |
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143 | "<span class=\"c2html-type\">"); |
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144 | } else if (word.ptr[0] == '#') { |
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145 | isinclude = !sstrcmp(word, S("#include")); |
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146 | ucx_buffer_puts(dest, |
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147 | "<span class=\"c2html-directive\">"); |
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148 | } else if (check_capsonly(word)) { |
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149 | ucx_buffer_puts(dest, |
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150 | "<span class=\"c2html-macroconst\">"); |
21 | 151 | } else { |
152 | closespan = 0; | |
153 | } | |
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154 | put_htmlescapedstr(dest, word); |
21 | 155 | if (closespan) { |
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156 | ucx_buffer_puts(dest, "</span>"); |
21 | 157 | } |
158 | } | |
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159 | word.length = 0; |
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160 | put_htmlescaped(dest, c); |
21 | 161 | } else { |
162 | /* read word */ | |
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163 | if (word.length < WORDBUF_SIZE) { |
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164 | word.ptr[word.length++] = c; |
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165 | } else if (word.length == WORDBUF_SIZE) { |
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166 | /* TODO: this will be removed */ |
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167 | ucx_buffer_puts(dest, |
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168 | "!!! WARNING - WORD TOO LONG TO PARSE !!!"); |
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169 | word.length = 0; |
21 | 170 | } else { |
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171 | put_htmlescaped(dest, c); |
21 | 172 | } |
173 | } | |
174 | } | |
175 | ||
176 | isescaping = !isescaping & (c == '\\'); | |
177 | } | |
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178 | } while (c != '\n'); |
21 | 179 | } |