11 void lexerror(lex_file *lex, const char *fmt, ...)
17 con_vprintmsg(LVL_ERROR, lex->name, lex->sline, "parse error", fmt, ap);
19 con_vprintmsg(LVL_ERROR, "", 0, "parse error", fmt, ap);
23 bool lexwarn(lex_file *lex, int warntype, const char *fmt, ...)
26 int lvl = LVL_WARNING;
28 if (!OPTS_WARN(warntype))
35 con_vprintmsg(lvl, lex->name, lex->sline, "warning", fmt, ap);
45 token *tok = (token*)mem_a(sizeof(token));
48 memset(tok, 0, sizeof(*tok));
52 void token_delete(token *self)
54 if (self->next && self->next->prev == self)
55 self->next->prev = self->prev;
56 if (self->prev && self->prev->next == self)
57 self->prev->next = self->next;
58 MEM_VECTOR_CLEAR(self, value);
62 token* token_copy(const token *cp)
64 token* self = token_new();
68 self->value_alloc = cp->value_count + 1;
69 self->value_count = cp->value_count;
70 self->value = (char*)mem_a(self->value_alloc);
75 memcpy(self->value, cp->value, cp->value_count);
76 self->value[self->value_alloc-1] = 0;
80 self->ttype = cp->ttype;
81 memcpy(&self->constval, &cp->constval, sizeof(self->constval));
85 void token_delete_all(token *t)
96 token* token_copy_all(const token *cp)
101 out = cur = token_copy(cp);
107 cur->next = token_copy(cp);
109 token_delete_all(out);
112 cur->next->prev = cur;
119 static void lex_token_new(lex_file *lex)
123 token_delete(lex->tok);
124 lex->tok = token_new();
127 vec_shrinkto(lex->tok.value, 0);
128 lex->tok.constval.t = 0;
129 lex->tok.ctx.line = lex->sline;
130 lex->tok.ctx.file = lex->name;
135 lex_file* lex_open(const char *file)
138 FILE *in = util_fopen(file, "rb");
141 lexerror(NULL, "open failed: '%s'\n", file);
145 lex = (lex_file*)mem_a(sizeof(*lex));
148 lexerror(NULL, "out of memory\n");
152 memset(lex, 0, sizeof(*lex));
155 lex->name = util_strdup(file);
156 lex->line = 1; /* we start counting at 1 */
161 vec_push(lex_filenames, lex->name);
165 lex_file* lex_open_string(const char *str, size_t len, const char *name)
169 lex = (lex_file*)mem_a(sizeof(*lex));
171 lexerror(NULL, "out of memory\n");
175 memset(lex, 0, sizeof(*lex));
178 lex->open_string = str;
179 lex->open_string_length = len;
180 lex->open_string_pos = 0;
182 lex->name = util_strdup(name ? name : "<string-source>");
183 lex->line = 1; /* we start counting at 1 */
188 vec_push(lex_filenames, lex->name);
193 void lex_cleanup(void)
196 for (i = 0; i < vec_size(lex_filenames); ++i)
197 mem_d(lex_filenames[i]);
198 vec_free(lex_filenames);
201 void lex_close(lex_file *lex)
204 for (i = 0; i < vec_size(lex->frames); ++i)
205 mem_d(lex->frames[i].name);
206 vec_free(lex->frames);
209 vec_free(lex->modelname);
215 token_delete(lex->tok);
217 vec_free(lex->tok.value);
219 /* mem_d(lex->name); collected in lex_filenames */
223 static int lex_fgetc(lex_file *lex)
226 return fgetc(lex->file);
227 if (lex->open_string) {
228 if (lex->open_string_pos >= lex->open_string_length)
230 return lex->open_string[lex->open_string_pos++];
235 /* Get or put-back data
236 * The following to functions do NOT understand what kind of data they
238 * The are merely wrapping get/put in order to count line numbers.
240 static void lex_ungetch(lex_file *lex, int ch);
241 static int lex_try_trigraph(lex_file *lex, int old)
246 lex_ungetch(lex, c2);
252 case '=': return '#';
253 case '/': return '\\';
254 case '\'': return '^';
255 case '(': return '[';
256 case ')': return ']';
257 case '!': return '|';
258 case '<': return '{';
259 case '>': return '}';
260 case '-': return '~';
262 lex_ungetch(lex, c3);
263 lex_ungetch(lex, c2);
268 static int lex_try_digraph(lex_file *lex, int ch)
272 if (ch == '<' && c2 == ':')
274 else if (ch == ':' && c2 == '>')
276 else if (ch == '<' && c2 == '%')
278 else if (ch == '%' && c2 == '>')
280 else if (ch == '%' && c2 == ':')
282 lex_ungetch(lex, c2);
286 static int lex_getch(lex_file *lex)
292 if (!lex->push_line && lex->peek[lex->peekpos] == '\n')
294 return lex->peek[lex->peekpos];
298 if (!lex->push_line && ch == '\n')
301 return lex_try_trigraph(lex, ch);
302 else if (!lex->flags.nodigraphs && (ch == '<' || ch == ':' || ch == '%'))
303 return lex_try_digraph(lex, ch);
307 static void lex_ungetch(lex_file *lex, int ch)
309 lex->peek[lex->peekpos++] = ch;
310 if (!lex->push_line && ch == '\n')
314 /* classify characters
315 * some additions to the is*() functions of ctype.h
318 /* Idents are alphanumberic, but they start with alpha or _ */
319 static bool isident_start(int ch)
321 return isalpha(ch) || ch == '_';
324 static bool isident(int ch)
326 return isident_start(ch) || isdigit(ch);
329 /* isxdigit_only is used when we already know it's not a digit
330 * and want to see if it's a hex digit anyway.
332 static bool isxdigit_only(int ch)
334 return (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F');
337 /* Append a character to the token buffer */
338 static void lex_tokench(lex_file *lex, int ch)
340 vec_push(lex->tok.value, ch);
343 /* Append a trailing null-byte */
344 static void lex_endtoken(lex_file *lex)
346 vec_push(lex->tok.value, 0);
347 vec_shrinkby(lex->tok.value, 1);
350 static bool lex_try_pragma(lex_file *lex)
354 char *command = NULL;
358 if (lex->flags.preprocessing)
365 lex_ungetch(lex, ch);
369 for (ch = lex_getch(lex); vec_size(pragma) < 8 && ch >= 'a' && ch <= 'z'; ch = lex_getch(lex))
370 vec_push(pragma, ch);
373 if (ch != ' ' || strcmp(pragma, "pragma")) {
374 lex_ungetch(lex, ch);
378 for (ch = lex_getch(lex); vec_size(command) < 32 && ch >= 'a' && ch <= 'z'; ch = lex_getch(lex))
379 vec_push(command, ch);
380 vec_push(command, 0);
383 lex_ungetch(lex, ch);
387 for (ch = lex_getch(lex); vec_size(param) < 32 && ch != ')' && ch != '\n'; ch = lex_getch(lex))
392 lex_ungetch(lex, ch);
396 if (!strcmp(command, "push")) {
397 if (!strcmp(param, "line")) {
404 else if (!strcmp(command, "pop")) {
405 if (!strcmp(param, "line")) {
413 else if (!strcmp(command, "file")) {
414 lex->name = util_strdup(param);
415 vec_push(lex_filenames, lex->name);
417 else if (!strcmp(command, "line")) {
418 line = strtol(param, NULL, 0)-1;
431 while (vec_size(command)) {
432 lex_ungetch(lex, vec_last(command));
439 while (vec_size(command)) {
440 lex_ungetch(lex, vec_last(command));
447 while (vec_size(pragma)) {
448 lex_ungetch(lex, vec_last(pragma));
453 lex_ungetch(lex, '#');
459 /* Skip whitespace and comments and return the first
460 * non-white character.
461 * As this makes use of the above getch() ungetch() functions,
462 * we don't need to care at all about line numbering anymore.
464 * In theory, this function should only be used at the beginning
465 * of lexing, or when we *know* the next character is part of the token.
466 * Otherwise, if the parser throws an error, the linenumber may not be
467 * the line of the error, but the line of the next token AFTER the error.
469 * This is currently only problematic when using c-like string-continuation,
470 * since comments and whitespaces are allowed between 2 such strings.
474 "A continuation of the previous string"
475 // This line is skipped
478 * In this case, if the parse decides it didn't actually want a string,
479 * and uses lex->line to print an error, it will show the ', foo);' line's
482 * On the other hand, the parser is supposed to remember the line of the next
483 * token's beginning. In this case we would want skipwhite() to be called
484 * AFTER reading a token, so that the parser, before reading the NEXT token,
485 * doesn't store teh *comment's* linenumber, but the actual token's linenumber.
488 * here is to store the line of the first character after skipping
489 * the initial whitespace in lex->sline, this happens in lex_do.
491 static int lex_skipwhite(lex_file *lex)
494 bool haswhite = false;
499 while (ch != EOF && isspace(ch)) {
501 if (lex_try_pragma(lex)) {
506 if (lex->flags.preprocessing) {
509 /* see if there was whitespace first */
510 if (haswhite) { /* (vec_size(lex->tok.value)) { */
511 lex_ungetch(lex, ch);
515 /* otherwise return EOL */
519 lex_tokench(lex, ch);
528 /* one line comment */
531 if (lex->flags.preprocessing) {
534 lex_tokench(lex, '/');
535 lex_tokench(lex, '/');
537 lex_tokench(lex, ' ');
538 lex_tokench(lex, ' ');
541 while (ch != EOF && ch != '\n') {
542 if (lex->flags.preprocessing)
543 lex_tokench(lex, ' '); /* ch); */
546 if (lex->flags.preprocessing) {
547 lex_ungetch(lex, '\n');
555 /* multiline comment */
556 if (lex->flags.preprocessing) {
559 lex_tokench(lex, '/');
560 lex_tokench(lex, '*');
562 lex_tokench(lex, ' ');
563 lex_tokench(lex, ' ');
572 if (lex->flags.preprocessing) {
574 lex_tokench(lex, '*');
575 lex_tokench(lex, '/');
577 lex_tokench(lex, ' ');
578 lex_tokench(lex, ' ');
583 if (lex->flags.preprocessing) {
584 lex_tokench(lex, ' '); /* ch); */
587 ch = ' '; /* cause TRUE in the isspace check */
590 /* Otherwise roll back to the slash and break out of the loop */
591 lex_ungetch(lex, ch);
595 } while (ch != EOF && isspace(ch));
599 lex_ungetch(lex, ch);
606 static bool GMQCC_WARN lex_finish_ident(lex_file *lex)
611 while (ch != EOF && isident(ch))
613 lex_tokench(lex, ch);
617 /* last ch was not an ident ch: */
618 lex_ungetch(lex, ch);
623 /* read one ident for the frame list */
624 static int lex_parse_frame(lex_file *lex)
631 while (ch != EOF && ch != '\n' && isspace(ch))
637 if (!isident_start(ch)) {
638 lexerror(lex, "invalid framename, must start with one of a-z or _, got %c", ch);
642 lex_tokench(lex, ch);
643 if (!lex_finish_ident(lex))
649 /* read a list of $frames */
650 static bool lex_finish_frames(lex_file *lex)
657 rc = lex_parse_frame(lex);
658 if (rc > 0) /* end of line */
660 if (rc < 0) /* error */
663 for (i = 0; i < vec_size(lex->frames); ++i) {
664 if (!strcmp(lex->tok.value, lex->frames[i].name)) {
665 lex->frames[i].value = lex->framevalue++;
666 if (lexwarn(lex, WARN_FRAME_MACROS, "duplicate frame macro defined: `%s`", lex->tok.value))
671 if (i < vec_size(lex->frames))
674 m.value = lex->framevalue++;
675 m.name = util_strdup(lex->tok.value);
676 vec_shrinkto(lex->tok.value, 0);
677 vec_push(lex->frames, m);
681 static int GMQCC_WARN lex_finish_string(lex_file *lex, int quote)
689 return TOKEN_STRINGCONST;
691 if (lex->flags.preprocessing && ch == '\\') {
692 lex_tokench(lex, ch);
695 lexerror(lex, "unexpected end of file");
696 lex_ungetch(lex, EOF); /* next token to be TOKEN_EOF */
697 return (lex->tok.ttype = TOKEN_ERROR);
699 lex_tokench(lex, ch);
701 else if (ch == '\\') {
704 lexerror(lex, "unexpected end of file");
705 lex_ungetch(lex, EOF); /* next token to be TOKEN_EOF */
706 return (lex->tok.ttype = TOKEN_ERROR);
713 case 'a': ch = '\a'; break;
714 case 'b': ch = '\b'; break;
715 case 'r': ch = '\r'; break;
716 case 'n': ch = '\n'; break;
717 case 't': ch = '\t'; break;
718 case 'f': ch = '\f'; break;
719 case 'v': ch = '\v'; break;
721 lexwarn(lex, WARN_UNKNOWN_CONTROL_SEQUENCE, "unrecognized control sequence: \\%c", ch);
722 /* so we just add the character plus backslash no matter what it actually is */
723 lex_tokench(lex, '\\');
725 /* add the character finally */
726 lex_tokench(lex, ch);
729 lex_tokench(lex, ch);
731 lexerror(lex, "unexpected end of file within string constant");
732 lex_ungetch(lex, EOF); /* next token to be TOKEN_EOF */
733 return (lex->tok.ttype = TOKEN_ERROR);
736 static int GMQCC_WARN lex_finish_digit(lex_file *lex, int lastch)
742 /* parse a number... */
743 lex->tok.ttype = TOKEN_INTCONST;
745 lex_tokench(lex, ch);
748 if (ch != '.' && !isdigit(ch))
750 if (lastch != '0' || ch != 'x')
752 /* end of the number or EOF */
753 lex_ungetch(lex, ch);
756 lex->tok.constval.i = lastch - '0';
757 return lex->tok.ttype;
763 /* EOF would have been caught above */
767 lex_tokench(lex, ch);
769 while (isdigit(ch) || (ishex && isxdigit_only(ch)))
771 lex_tokench(lex, ch);
775 /* NOT else, '.' can come from above as well */
776 if (ch == '.' && !ishex)
778 /* Allow floating comma in non-hex mode */
779 lex->tok.ttype = TOKEN_FLOATCONST;
780 lex_tokench(lex, ch);
782 /* continue digits-only */
786 lex_tokench(lex, ch);
790 /* put back the last character */
791 /* but do not put back the trailing 'f' or a float */
792 if (lex->tok.ttype == TOKEN_FLOATCONST && ch == 'f')
795 /* generally we don't want words to follow numbers: */
797 lexerror(lex, "unexpected trailing characters after number");
798 return (lex->tok.ttype = TOKEN_ERROR);
800 lex_ungetch(lex, ch);
803 if (lex->tok.ttype == TOKEN_FLOATCONST)
804 lex->tok.constval.f = strtod(lex->tok.value, NULL);
806 lex->tok.constval.i = strtol(lex->tok.value, NULL, 0);
807 return lex->tok.ttype;
810 int lex_do(lex_file *lex)
821 ch = lex_skipwhite(lex);
822 if (!lex->flags.mergelines || ch != '\\')
826 lex_ungetch(lex, ch);
830 /* we reached a linemerge */
831 lex_tokench(lex, '\n');
835 lex->sline = lex->line;
836 lex->tok.ctx.line = lex->sline;
837 lex->tok.ctx.file = lex->name;
839 if (lex->flags.preprocessing && (ch == TOKEN_WHITE || ch == TOKEN_EOL || ch == TOKEN_FATAL)) {
840 return (lex->tok.ttype = ch);
844 return (lex->tok.ttype = TOKEN_FATAL);
848 return (lex->tok.ttype = TOKEN_EOF);
851 /* modelgen / spiritgen commands */
857 if (!isident_start(ch)) {
858 lexerror(lex, "hanging '$' modelgen/spritegen command line");
861 lex_tokench(lex, ch);
862 if (!lex_finish_ident(lex))
863 return (lex->tok.ttype = TOKEN_ERROR);
865 /* skip the known commands */
868 if (!strcmp(v, "frame") || !strcmp(v, "framesave"))
870 /* frame/framesave command works like an enum
871 * similar to fteqcc we handle this in the lexer.
872 * The reason for this is that it is sensitive to newlines,
873 * which the parser is unaware of
875 if (!lex_finish_frames(lex))
876 return (lex->tok.ttype = TOKEN_ERROR);
880 if (!strcmp(v, "framevalue"))
883 while (ch != EOF && isspace(ch) && ch != '\n')
887 lexerror(lex, "$framevalue requires an integer parameter");
892 lex->tok.ttype = lex_finish_digit(lex, ch);
894 if (lex->tok.ttype != TOKEN_INTCONST) {
895 lexerror(lex, "$framevalue requires an integer parameter");
898 lex->framevalue = lex->tok.constval.i;
902 if (!strcmp(v, "framerestore"))
908 rc = lex_parse_frame(lex);
911 lexerror(lex, "$framerestore requires a framename parameter");
915 return (lex->tok.ttype = TOKEN_FATAL);
918 for (frame = 0; frame < vec_size(lex->frames); ++frame) {
919 if (!strcmp(v, lex->frames[frame].name)) {
920 lex->framevalue = lex->frames[frame].value;
924 lexerror(lex, "unknown framename `%s`", v);
928 if (!strcmp(v, "modelname"))
934 rc = lex_parse_frame(lex);
937 lexerror(lex, "$modelname requires a parameter");
941 return (lex->tok.ttype = TOKEN_FATAL);
944 if (lex->modelname) {
946 m.value = lex->framevalue;
947 m.name = lex->modelname;
948 lex->modelname = NULL;
949 vec_push(lex->frames, m);
951 lex->modelname = lex->tok.value;
952 lex->tok.value = NULL;
956 if (!strcmp(v, "flush"))
959 for (frame = 0; frame < vec_size(lex->frames); ++frame)
960 mem_d(lex->frames[frame].name);
961 vec_free(lex->frames);
962 /* skip line (fteqcc does it too) */
964 while (ch != EOF && ch != '\n')
969 if (!strcmp(v, "cd") ||
970 !strcmp(v, "origin") ||
971 !strcmp(v, "base") ||
972 !strcmp(v, "flags") ||
973 !strcmp(v, "scale") ||
978 while (ch != EOF && ch != '\n')
983 for (frame = 0; frame < vec_size(lex->frames); ++frame) {
984 if (!strcmp(v, lex->frames[frame].name)) {
985 lex->tok.constval.i = lex->frames[frame].value;
986 return (lex->tok.ttype = TOKEN_INTCONST);
990 lexerror(lex, "invalid frame macro");
994 /* single-character tokens */
999 lex_tokench(lex, ch);
1001 if (lex->flags.noops)
1002 return (lex->tok.ttype = ch);
1004 return (lex->tok.ttype = TOKEN_OPERATOR);
1013 lex_tokench(lex, ch);
1015 return (lex->tok.ttype = ch);
1020 if (lex->flags.noops)
1022 /* Detect characters early which are normally
1023 * operators OR PART of an operator.
1040 lex_tokench(lex, ch);
1042 return (lex->tok.ttype = ch);
1049 lex_tokench(lex, ch);
1050 /* peak ahead once */
1051 nextch = lex_getch(lex);
1052 if (nextch != '.') {
1053 lex_ungetch(lex, nextch);
1055 return (lex->tok.ttype = ch);
1057 /* peak ahead again */
1058 nextch = lex_getch(lex);
1059 if (nextch != '.') {
1060 lex_ungetch(lex, nextch);
1061 lex_ungetch(lex, nextch);
1063 return (lex->tok.ttype = ch);
1065 /* fill the token to be "..." */
1066 lex_tokench(lex, ch);
1067 lex_tokench(lex, ch);
1069 return (lex->tok.ttype = TOKEN_DOTS);
1073 if (ch == ',' || ch == '.') {
1074 lex_tokench(lex, ch);
1076 return (lex->tok.ttype = TOKEN_OPERATOR);
1079 if (ch == '+' || ch == '-' || /* ++, --, +=, -= and -> as well! */
1080 ch == '>' || ch == '<' || /* <<, >>, <=, >= */
1081 ch == '=' || ch == '!' || /* ==, != */
1082 ch == '&' || ch == '|') /* &&, ||, &=, |= */
1084 lex_tokench(lex, ch);
1086 nextch = lex_getch(lex);
1087 if (nextch == ch || nextch == '=') {
1088 lex_tokench(lex, nextch);
1089 } else if (ch == '-' && nextch == '>') {
1090 lex_tokench(lex, nextch);
1092 lex_ungetch(lex, nextch);
1095 return (lex->tok.ttype = TOKEN_OPERATOR);
1099 if (ch == '^' || ch == '~' || ch == '!')
1101 lex_tokench(lex, ch);
1103 return (lex->tok.ttype = TOKEN_OPERATOR);
1107 if (ch == '*' || ch == '/') /* *=, /= */
1109 lex_tokench(lex, ch);
1111 nextch = lex_getch(lex);
1112 if (nextch == '=') {
1113 lex_tokench(lex, nextch);
1115 lex_ungetch(lex, nextch);
1118 return (lex->tok.ttype = TOKEN_OPERATOR);
1121 if (isident_start(ch))
1125 lex_tokench(lex, ch);
1126 if (!lex_finish_ident(lex)) {
1128 return (lex->tok.ttype = TOKEN_ERROR);
1131 lex->tok.ttype = TOKEN_IDENT;
1134 if (!strcmp(v, "void")) {
1135 lex->tok.ttype = TOKEN_TYPENAME;
1136 lex->tok.constval.t = TYPE_VOID;
1137 } else if (!strcmp(v, "int")) {
1138 lex->tok.ttype = TOKEN_TYPENAME;
1139 lex->tok.constval.t = TYPE_INTEGER;
1140 } else if (!strcmp(v, "float")) {
1141 lex->tok.ttype = TOKEN_TYPENAME;
1142 lex->tok.constval.t = TYPE_FLOAT;
1143 } else if (!strcmp(v, "string")) {
1144 lex->tok.ttype = TOKEN_TYPENAME;
1145 lex->tok.constval.t = TYPE_STRING;
1146 } else if (!strcmp(v, "entity")) {
1147 lex->tok.ttype = TOKEN_TYPENAME;
1148 lex->tok.constval.t = TYPE_ENTITY;
1149 } else if (!strcmp(v, "vector")) {
1150 lex->tok.ttype = TOKEN_TYPENAME;
1151 lex->tok.constval.t = TYPE_VECTOR;
1152 } else if (!strcmp(v, "for") ||
1153 !strcmp(v, "while") ||
1156 !strcmp(v, "else") ||
1157 !strcmp(v, "local") ||
1158 !strcmp(v, "return") ||
1159 !strcmp(v, "not") ||
1160 !strcmp(v, "const"))
1162 lex->tok.ttype = TOKEN_KEYWORD;
1164 else if (opts_standard != COMPILER_QCC)
1166 /* other standards reserve these keywords */
1167 if (!strcmp(v, "switch") ||
1168 !strcmp(v, "struct") ||
1169 !strcmp(v, "union") ||
1170 !strcmp(v, "break") ||
1171 !strcmp(v, "continue") ||
1174 lex->tok.ttype = TOKEN_KEYWORD;
1178 return lex->tok.ttype;
1183 lex->flags.nodigraphs = true;
1184 if (lex->flags.preprocessing)
1185 lex_tokench(lex, ch);
1186 lex->tok.ttype = lex_finish_string(lex, '"');
1187 if (lex->flags.preprocessing)
1188 lex_tokench(lex, ch);
1189 while (!lex->flags.preprocessing && lex->tok.ttype == TOKEN_STRINGCONST)
1191 /* Allow c style "string" "continuation" */
1192 ch = lex_skipwhite(lex);
1194 lex_ungetch(lex, ch);
1198 lex->tok.ttype = lex_finish_string(lex, '"');
1200 lex->flags.nodigraphs = false;
1202 return lex->tok.ttype;
1207 /* we parse character constants like string,
1208 * but return TOKEN_CHARCONST, or a vector type if it fits...
1209 * Likewise actual unescaping has to be done by the parser.
1210 * The difference is we don't allow 'char' 'continuation'.
1212 if (lex->flags.preprocessing)
1213 lex_tokench(lex, ch);
1214 lex->tok.ttype = lex_finish_string(lex, '\'');
1215 if (lex->flags.preprocessing)
1216 lex_tokench(lex, ch);
1219 /* It's a vector if we can successfully scan 3 floats */
1221 if (sscanf_s(lex->tok.value, " %f %f %f ",
1222 &lex->tok.constval.v.x, &lex->tok.constval.v.y, &lex->tok.constval.v.z) == 3)
1224 if (sscanf(lex->tok.value, " %f %f %f ",
1225 &lex->tok.constval.v.x, &lex->tok.constval.v.y, &lex->tok.constval.v.z) == 3)
1229 lex->tok.ttype = TOKEN_VECTORCONST;
1232 return lex->tok.ttype;
1237 lex->tok.ttype = lex_finish_digit(lex, ch);
1239 return lex->tok.ttype;
1242 lexerror(lex, "unknown token");
1243 return (lex->tok.ttype = TOKEN_ERROR);