src/ccodegen.c

Tue, 23 Aug 2016 14:31:02 +0200

author
Mike Becker <universe@uap-core.de>
date
Tue, 23 Aug 2016 14:31:02 +0200
changeset 43
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parent 39
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child 45
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permissions
-rw-r--r--

cleans up main function

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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abaf2489c549 adjusted copyright info
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4 * Copyright 2016 Mike Becker. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 *
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28 */
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29
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30 #include "ccodegen.h"
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31 #include <string.h>
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32 #include <ctype.h>
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33
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34 const char* ckeywords[] = {
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35 "auto", "break", "case", "char", "const", "continue", "default", "do",
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36 "double", "else", "enum", "extern", "float", "for", "goto", "if", "int",
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37 "long", "register", "return", "short", "signed", "sizeof", "static",
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38 "struct", "switch", "typedef", "union", "unsigned", "void", "volatile",
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39 "while", NULL
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40 };
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41
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42 int check_ctype(char *word, size_t len) {
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43 return (word[len-2] == '_' && word[len-1] == 't');
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44 }
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45
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46 int check_cdirective(char *word) {
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47 return (word[0] == '#');
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48 }
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49
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50 #define memcpy_const(darr,doff,str) memcpy(&(darr[doff]), str, sizeof(str)-1); \
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51 dp += sizeof(str)-1
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52
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53 void cparseline(char *src, char *dest, highlighter_t *hltr) {
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54
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55 memset(hltr->word, 0, WORDBUF_SIZE);
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56 size_t wp = 0, ifp = 0, sp = (size_t)-1, dp = 0;
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57 int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0;
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58 char quote = '\0';
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59 int isescaping = 0;
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60
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61 /* continue a multi line comment highlighting */
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62 if (hltr->iscommentml) {
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63 iscomment = 1;
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64 memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
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65 }
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66
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67 char c;
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68 do {
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69 c = src[++sp];
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70 if (!c) break;
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71
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72 /* comments */
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73 if (!isstring && c == '/') {
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74 if (hltr->iscommentml && sp > 0 && src[sp-1] == '*') {
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75 iscomment = 0;
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76 hltr->iscommentml = 0;
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77 memcpy_const(dest, dp, "/</span>");
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78 continue;
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79 } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) {
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80 iscomment = 1;
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81 hltr->iscommentml = (src[sp+1] == '*');
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82 memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
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83 }
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84 }
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85
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86 if (iscomment) {
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87 if (c == '\n') {
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88 memcpy_const(dest, dp, "</span>");
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89 }
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90 dp = writeescapedchar(dest, dp, c);
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91 } else if (isinclude) {
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92 if (c == '<') {
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93 memcpy_const(dest, dp, "<span class=\"c2html-stdinclude\">");
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94 dp = writeescapedchar(dest, dp, c);
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95 } else if (c == '\"') {
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96 if (parseinclude) {
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97 dest[dp++] = '\"';
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98 dest[dp++] = '>';
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99 memcpy(&(dest[dp]), hltr->includefile, ifp);
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100 dp += ifp;
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101
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102 dp = writeescapedchar(dest, dp, c);
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103 memcpy_const(dest, dp, "</a>");
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104 parseinclude = 0;
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105 } else {
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106 memcpy_const(dest, dp,
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107 "<a class=\"c2html-userinclude\" href=");
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108 dp = writeescapedchar(dest, dp, c);
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109 ifp = 0;
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110 hltr->includefile[ifp++] = '\"';
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111 parseinclude = 1;
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112 }
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113 } else if (c == '>') {
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114 dp = writeescapedchar(dest, dp, c);
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115 memcpy_const(dest, dp, "</span>");
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116 } else {
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117 if (parseinclude) {
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118 hltr->includefile[ifp++] = c;
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119 }
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120 dp = writeescapedchar(dest, dp, c);
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121 }
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122 } else {
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123 /* strings */
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124 if (!isescaping && (c == '\'' || c == '\"')) {
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125 if (isstring) {
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126 dp = writeescapedchar(dest, dp, c);
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127 if (c == quote) {
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128 isstring = 0;
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129 memcpy_const(dest, dp, "</span>");
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130 } else {
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131 dp = writeescapedchar(dest, dp, c);
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132 }
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133 } else {
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134 isstring = 1;
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135 quote = c;
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136 memcpy_const(dest, dp,
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137 "<span class=\"c2html-string\">");
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138 dp = writeescapedchar(dest, dp, c);
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139 }
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140 } else {
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141 if (isstring) {
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142 dp = writeescapedchar(dest, dp, c);
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143 } else if (!iswordcharacter(c)) {
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144 /* interpret word int_t */
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145 if (wp > 0 && wp < WORDBUF_SIZE) {
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146 int closespan = 1;
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147 if (check_keyword(hltr->word, hltr->keywords)) {
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148 memcpy_const(dest, dp,
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149 "<span class=\"c2html-keyword\">");
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150 } else if (hltr->istype(hltr->word, wp)) {
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151 memcpy_const(dest, dp,
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152 "<span class=\"c2html-type\">");
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153 } else if (hltr->isdirective(hltr->word)) {
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154 isinclude = !strncmp(
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155 "#include", hltr->word, WORDBUF_SIZE);
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156 memcpy_const(dest, dp,
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157 "<span class=\"c2html-directive\">");
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158 } else if (check_capsonly(hltr->word, wp)) {
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159 memcpy_const(dest, dp,
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160 "<span class=\"c2html-macroconst\">");
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161 } else {
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162 closespan = 0;
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163 }
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164 for (int i = 0 ; i < wp ; i++) {
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165 dp = writeescapedchar(dest, dp, hltr->word[i]);
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166 }
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167 if (closespan) {
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168 memcpy_const(dest, dp, "</span>");
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169 }
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170 }
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171 memset(hltr->word, 0, WORDBUF_SIZE);
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172 wp = 0;
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173 dp = writeescapedchar(dest, dp, c);
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174 } else {
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175 /* read word */
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176 if (wp < WORDBUF_SIZE) {
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177 hltr->word[wp++] = c;
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178 } else if (wp == WORDBUF_SIZE) {
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179 for (int i = 0 ; i < WORDBUF_SIZE ; i++) {
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180 dp = writeescapedchar(dest, dp, hltr->word[i]);
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181 }
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182 wp++;
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183 dp = writeescapedchar(dest, dp, c);
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184 } else {
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185 dp = writeescapedchar(dest, dp, c);
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186 }
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187 }
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188 }
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189
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190 isescaping = !isescaping & (c == '\\');
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191 }
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192 } while (c != '\n');
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193 dest[dp] = 0;
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194 }

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