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Diffstat (limited to 'tokens.c')
| -rw-r--r-- | tokens.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/tokens.c b/tokens.c deleted file mode 100644 index 5c4ba320..00000000 --- a/tokens.c +++ /dev/null @@ -1,193 +0,0 @@ -/* $Id: tokens.c,v 1.4 2008/12/09 17:09:12 kristaps Exp $ */ -/* - * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the - * above copyright notice and this permission notice appear in all - * copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE - * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ -#include <assert.h> -#include <stdlib.h> -#include <string.h> - -#include "private.h" - - -static int rofftok_dashes(const char *, int *); -static int rofftok_special(const char *, int *); -static int rofftok_predef(const char *, int *); -static int rofftok_defined(const char *, int *); - - -static int -rofftok_defined(const char *buf, int *i) -{ - const char *p; - - if (0 == buf[*i]) - return(-1); - if (0 == buf[*i + 1]) - return(-1); - - (*i)++; - p = &buf[(*i)++]; - - if (0 == memcmp(p, ">=", 2)) - return(ROFFTok_Ge); - else if (0 == memcmp(p, "<=", 2)) - return(ROFFTok_Le); - else if (0 == memcmp(p, "Rq", 2)) - return(ROFFTok_Rquote); - else if (0 == memcmp(p, "Lq", 2)) - return(ROFFTok_Lquote); - else if (0 == memcmp(p, "ua", 2)) - return(ROFFTok_Uparrow); - else if (0 == memcmp(p, "aa", 2)) - return(ROFFTok_Acute); - else if (0 == memcmp(p, "ga", 2)) - return(ROFFTok_Grave); - else if (0 == memcmp(p, "Pi", 2)) - return(ROFFTok_Pi); - else if (0 == memcmp(p, "Ne", 2)) - return(ROFFTok_Ne); - else if (0 == memcmp(p, "Le", 2)) - return(ROFFTok_Le); - else if (0 == memcmp(p, "Ge", 2)) - return(ROFFTok_Ge); - else if (0 == memcmp(p, "Lt", 2)) - return(ROFFTok_Lt); - else if (0 == memcmp(p, "Gt", 2)) - return(ROFFTok_Gt); - else if (0 == memcmp(p, "Pm", 2)) - return(ROFFTok_Plusmin); - else if (0 == memcmp(p, "If", 2)) - return(ROFFTok_Infty); - else if (0 == memcmp(p, "Na", 2)) - return(ROFFTok_Nan); - else if (0 == memcmp(p, "Ba", 2)) - return(ROFFTok_Bar); - - return(-1); -} - - -static int -rofftok_predef(const char *buf, int *i) -{ - if (0 == buf[*i]) - return(-1); - if ('(' == buf[*i]) - return(rofftok_defined(buf, i)); - - switch (buf[*i]) { - case ('q'): - return(ROFFTok_Quote); - default: - break; - } - - return(-1); -} - - -static int -rofftok_dashes(const char *buf, int *i) -{ - - if (0 == buf[*i]) - return(-1); - else if (buf[(*i)++] != 'e') - return(-1); - if (0 == buf[*i]) - return(-1); - - switch (buf[*i]) { - case ('m'): - return(ROFFTok_Em); - case ('n'): - return(ROFFTok_En); - default: - break; - } - return(-1); -} - - -static int -rofftok_special(const char *buf, int *i) -{ - - if (0 == buf[*i]) - return(ROFFTok_Slash); - - switch (buf[*i]) { - case ('a'): - return(ROFFTok_Sp_A); - case ('b'): - return(ROFFTok_Sp_B); - case ('f'): - return(ROFFTok_Sp_F); - case ('n'): - return(ROFFTok_Sp_N); - case ('r'): - return(ROFFTok_Sp_R); - case ('t'): - return(ROFFTok_Sp_T); - case ('v'): - return(ROFFTok_Sp_V); - case ('0'): - return(ROFFTok_Sp_0); - default: - break; - } - return(-1); -} - - -int -rofftok_scan(const char *buf, int *i) -{ - - assert(*buf); - assert(buf[*i] == '\\'); - - (*i)++; - - for ( ; buf[*i]; (*i)++) { - switch (buf[*i]) { - case ('e'): - (*i)++; - return(rofftok_special(buf, i)); - case ('('): - (*i)++; - return(rofftok_dashes(buf, i)); - case (' '): - return(ROFFTok_Space); - case ('&'): - return(ROFFTok_Null); - case ('-'): - return(ROFFTok_Hyphen); - case ('*'): - (*i)++; - return(rofftok_predef(buf, i)); - case ('\\'): - return(ROFFTok_Slash); - default: - break; - } - } - - return(-1); -} - - |