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comparison lwcc/lex.c @ 306:b08787e5b9f3 ccdev

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Add include search paths and command line macro definitions Added command line macro definitions. Also implemented include paths. There is no default include path; that will be supplied by the driver program.
author William Astle <lost@l-w.ca>
date Wed, 18 Sep 2013 20:41:41 -0600
parents 54f213c8fb81
children 670ea8f90212
comparison
equal deleted inserted replaced
305:54f213c8fb81 306:b08787e5b9f3
191 by fetch_byte(). Theoretically, an unlimited number of characters can 191 by fetch_byte(). Theoretically, an unlimited number of characters can
192 be unfetched. Line and column counting may be incorrect if unfetched 192 be unfetched. Line and column counting may be incorrect if unfetched
193 characters cross a token boundary. */ 193 characters cross a token boundary. */
194 void preproc_lex_unfetch_byte(struct preproc_info *pp, int c) 194 void preproc_lex_unfetch_byte(struct preproc_info *pp, int c)
195 { 195 {
196 if (pp -> lexstr)
197 {
198 if (c == CPP_EOL)
199 return;
200 if (pp -> lexstrloc > 0)
201 {
202 pp -> lexstrloc--;
203 return;
204 }
205 }
206
196 if (pp -> ungetbufl >= pp -> ungetbufs) 207 if (pp -> ungetbufl >= pp -> ungetbufs)
197 { 208 {
198 pp -> ungetbufs += 100; 209 pp -> ungetbufs += 100;
199 pp -> ungetbuf = lw_realloc(pp -> ungetbuf, pp -> ungetbufs); 210 pp -> ungetbuf = lw_realloc(pp -> ungetbuf, pp -> ungetbufs);
200 } 211 }