/contrib/groff/src/devices/xditview/lex.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 96 lines · 76 code · 10 blank · 10 comment · 35 complexity · eeb98e420bf842816139e7894ab09211 MD5 · raw file
- #include <X11/Xos.h>
- #include <X11/IntrinsicP.h>
- #include <X11/StringDefs.h>
- #include <stdio.h>
- #include "DviP.h"
- int
- DviGetAndPut(DviWidget dw, int *cp)
- {
- if (dw->dvi.ungot) {
- dw->dvi.ungot = 0;
- *cp = getc (dw->dvi.file);
- }
- else {
- *cp = getc (dw->dvi.file);
- if (*cp != EOF)
- putc (*cp, dw->dvi.tmpFile);
- }
- return *cp;
- }
- char *
- GetLine(DviWidget dw, char *Buffer, int Length)
- {
- int i = 0, c;
-
- Length--; /* Save room for final '\0' */
-
- while (DviGetC (dw, &c) != EOF) {
- if (Buffer && i < Length)
- Buffer[i++] = c;
- if (c == '\n') {
- DviUngetC(dw, c);
- break;
- }
- }
- if (Buffer)
- Buffer[i] = '\0';
- return Buffer;
- }
- char *
- GetWord(DviWidget dw, char *Buffer, int Length)
- {
- int i = 0, c;
-
- Length--; /* Save room for final '\0' */
- while (DviGetC(dw, &c) == ' ' || c == '\n')
- ;
- while (c != EOF) {
- if (Buffer && i < Length)
- Buffer[i++] = c;
- if (DviGetC(dw, &c) == ' ' || c == '\n') {
- DviUngetC(dw, c);
- break;
- }
- }
- if (Buffer)
- Buffer[i] = '\0';
- return Buffer;
- }
- int
- GetNumber(DviWidget dw)
- {
- int i = 0, c;
- int negative = 0;
- while (DviGetC(dw, &c) == ' ' || c == '\n')
- ;
- if (c == '-') {
- negative = 1;
- DviGetC(dw, &c);
- }
- for (; c >= '0' && c <= '9'; DviGetC(dw, &c)) {
- if (negative)
- i = i*10 - (c - '0');
- else
- i = i*10 + c - '0';
- }
- if (c != EOF)
- DviUngetC(dw, c);
- return i;
- }
-
- /*
- Local Variables:
- c-indent-level: 8
- c-continued-statement-offset: 8
- c-brace-offset: -8
- c-argdecl-indent: 8
- c-label-offset: -8
- c-tab-always-indent: nil
- End:
- */