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-rw-r--r--contrib/groff/refer/token.cc378
1 files changed, 0 insertions, 378 deletions
diff --git a/contrib/groff/refer/token.cc b/contrib/groff/refer/token.cc
deleted file mode 100644
index 1cf6890f24d4..000000000000
--- a/contrib/groff/refer/token.cc
+++ /dev/null
@@ -1,378 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.com)
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING. If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "refer.h"
-#include "token.h"
-
-#define TOKEN_TABLE_SIZE 1009
-// I believe in Icelandic thorn sorts after z.
-#define THORN_SORT_KEY "{"
-
-struct token_table_entry {
- const char *tok;
- token_info ti;
- token_table_entry();
-};
-
-token_table_entry token_table[TOKEN_TABLE_SIZE];
-int ntokens = 0;
-
-static void skip_name(const char **ptr, const char *end)
-{
- if (*ptr < end) {
- switch (*(*ptr)++) {
- case '(':
- if (*ptr < end) {
- *ptr += 1;
- if (*ptr < end)
- *ptr += 1;
- }
- break;
- case '[':
- while (*ptr < end)
- if (*(*ptr)++ == ']')
- break;
- break;
- }
- }
-}
-
-int get_token(const char **ptr, const char *end)
-{
- if (*ptr >= end)
- return 0;
- char c = *(*ptr)++;
- if (c == '\\' && *ptr < end) {
- switch (**ptr) {
- default:
- *ptr += 1;
- break;
- case '(':
- case '[':
- skip_name(ptr, end);
- break;
- case '*':
- case 'f':
- *ptr += 1;
- skip_name(ptr, end);
- break;
- }
- }
- return 1;
-}
-
-token_info::token_info()
-: type(TOKEN_OTHER), sort_key(0), other_case(0)
-{
-}
-
-void token_info::set(token_type t, const char *sk, const char *oc)
-{
- assert(oc == 0 || t == TOKEN_UPPER || t == TOKEN_LOWER);
- type = t;
- sort_key = sk;
- other_case = oc;
-}
-
-void token_info::sortify(const char *start, const char *end, string &result)
- const
-{
- if (sort_key)
- result += sort_key;
- else if (type == TOKEN_UPPER || type == TOKEN_LOWER) {
- for (; start < end; start++)
- if (csalpha(*start))
- result += cmlower(*start);
- }
-}
-
-int token_info::sortify_non_empty(const char *start, const char *end) const
-{
- if (sort_key)
- return *sort_key != '\0';
- if (type != TOKEN_UPPER && type != TOKEN_LOWER)
- return 0;
- for (; start < end; start++)
- if (csalpha(*start))
- return 1;
- return 0;
-}
-
-
-void token_info::lower_case(const char *start, const char *end,
- string &result) const
-{
- if (type != TOKEN_UPPER) {
- while (start < end)
- result += *start++;
- }
- else if (other_case)
- result += other_case;
- else {
- while (start < end)
- result += cmlower(*start++);
- }
-}
-
-void token_info::upper_case(const char *start, const char *end,
- string &result) const
-{
- if (type != TOKEN_LOWER) {
- while (start < end)
- result += *start++;
- }
- else if (other_case)
- result += other_case;
- else {
- while (start < end)
- result += cmupper(*start++);
- }
-}
-
-token_table_entry::token_table_entry()
-: tok(0)
-{
-}
-
-static void store_token(const char *tok, token_type typ,
- const char *sk = 0, const char *oc = 0)
-{
- unsigned n = hash_string(tok, strlen(tok)) % TOKEN_TABLE_SIZE;
- for (;;) {
- if (token_table[n].tok == 0) {
- if (++ntokens == TOKEN_TABLE_SIZE)
- assert(0);
- token_table[n].tok = tok;
- break;
- }
- if (strcmp(tok, token_table[n].tok) == 0)
- break;
- if (n == 0)
- n = TOKEN_TABLE_SIZE - 1;
- else
- --n;
- }
- token_table[n].ti.set(typ, sk, oc);
-}
-
-
-token_info default_token_info;
-
-const token_info *lookup_token(const char *start, const char *end)
-{
- unsigned n = hash_string(start, end - start) % TOKEN_TABLE_SIZE;
- for (;;) {
- if (token_table[n].tok == 0)
- break;
- if (strlen(token_table[n].tok) == end - start
- && memcmp(token_table[n].tok, start, end - start) == 0)
- return &(token_table[n].ti);
- if (n == 0)
- n = TOKEN_TABLE_SIZE - 1;
- else
- --n;
- }
- return &default_token_info;
-}
-
-static void init_ascii()
-{
- const char *p;
- for (p = "abcdefghijklmnopqrstuvwxyz"; *p; p++) {
- char buf[2];
- buf[0] = *p;
- buf[1] = '\0';
- store_token(strsave(buf), TOKEN_LOWER);
- buf[0] = cmupper(buf[0]);
- store_token(strsave(buf), TOKEN_UPPER);
- }
- for (p = "0123456789"; *p; p++) {
- char buf[2];
- buf[0] = *p;
- buf[1] = '\0';
- const char *s = strsave(buf);
- store_token(s, TOKEN_OTHER, s);
- }
- for (p = ".,:;?!"; *p; p++) {
- char buf[2];
- buf[0] = *p;
- buf[1] = '\0';
- store_token(strsave(buf), TOKEN_PUNCT);
- }
- store_token("-", TOKEN_HYPHEN);
-}
-
-static void store_letter(const char *lower, const char *upper,
- const char *sort_key = 0)
-{
- store_token(lower, TOKEN_LOWER, sort_key, upper);
- store_token(upper, TOKEN_UPPER, sort_key, lower);
-}
-
-static void init_letter(unsigned char uc_code, unsigned char lc_code,
- const char *sort_key)
-{
- char lbuf[2];
- lbuf[0] = lc_code;
- lbuf[1] = 0;
- char ubuf[2];
- ubuf[0] = uc_code;
- ubuf[1] = 0;
- store_letter(strsave(lbuf), strsave(ubuf), sort_key);
-}
-
-static void init_latin1()
-{
- init_letter(0xc0, 0xe0, "a");
- init_letter(0xc1, 0xe1, "a");
- init_letter(0xc2, 0xe2, "a");
- init_letter(0xc3, 0xe3, "a");
- init_letter(0xc4, 0xe4, "a");
- init_letter(0xc5, 0xe5, "a");
- init_letter(0xc6, 0xe6, "ae");
- init_letter(0xc7, 0xe7, "c");
- init_letter(0xc8, 0xe8, "e");
- init_letter(0xc9, 0xe9, "e");
- init_letter(0xca, 0xea, "e");
- init_letter(0xcb, 0xeb, "e");
- init_letter(0xcc, 0xec, "i");
- init_letter(0xcd, 0xed, "i");
- init_letter(0xce, 0xee, "i");
- init_letter(0xcf, 0xef, "i");
-
- init_letter(0xd0, 0xf0, "d");
- init_letter(0xd1, 0xf1, "n");
- init_letter(0xd2, 0xf2, "o");
- init_letter(0xd3, 0xf3, "o");
- init_letter(0xd4, 0xf4, "o");
- init_letter(0xd5, 0xf5, "o");
- init_letter(0xd6, 0xf6, "o");
- init_letter(0xd8, 0xf8, "o");
- init_letter(0xd9, 0xf9, "u");
- init_letter(0xda, 0xfa, "u");
- init_letter(0xdb, 0xfb, "u");
- init_letter(0xdc, 0xfc, "u");
- init_letter(0xdd, 0xfd, "y");
- init_letter(0xde, 0xfe, THORN_SORT_KEY);
-
- store_token("\337", TOKEN_LOWER, "ss", "SS");
- store_token("\377", TOKEN_LOWER, "y", "Y");
-}
-
-static void init_two_char_letter(char l1, char l2, char u1, char u2,
- const char *sk = 0)
-{
- char buf[6];
- buf[0] = '\\';
- buf[1] = '(';
- buf[2] = l1;
- buf[3] = l2;
- buf[4] = '\0';
- const char *p = strsave(buf);
- buf[2] = u1;
- buf[3] = u2;
- store_letter(p, strsave(buf), sk);
- buf[1] = '[';
- buf[4] = ']';
- buf[5] = '\0';
- p = strsave(buf);
- buf[2] = l1;
- buf[3] = l2;
- store_letter(strsave(buf), p, sk);
-
-}
-
-static void init_special_chars()
-{
- const char *p;
- for (p = "':^`~"; *p; p++)
- for (const char *q = "aeiouy"; *q; q++) {
- // Use a variable to work around bug in gcc 2.0
- char c = cmupper(*q);
- init_two_char_letter(*p, *q, *p, c);
- }
- for (p = "/l/o~n,coeaeij"; *p; p += 2) {
- // Use variables to work around bug in gcc 2.0
- char c0 = cmupper(p[0]);
- char c1 = cmupper(p[1]);
- init_two_char_letter(p[0], p[1], c0, c1);
- }
- init_two_char_letter('v', 's', 'v', 'S', "s");
- init_two_char_letter('v', 'z', 'v', 'Z', "z");
- init_two_char_letter('o', 'a', 'o', 'A', "a");
- init_two_char_letter('T', 'p', 'T', 'P', THORN_SORT_KEY);
- init_two_char_letter('-', 'd', '-', 'D');
-
- store_token("\\(ss", TOKEN_LOWER, 0, "SS");
- store_token("\\[ss]", TOKEN_LOWER, 0, "SS");
-
- store_token("\\(Sd", TOKEN_LOWER, "d", "\\(-D");
- store_token("\\[Sd]", TOKEN_LOWER, "d", "\\[-D]");
- store_token("\\(hy", TOKEN_HYPHEN);
- store_token("\\[hy]", TOKEN_HYPHEN);
- store_token("\\(en", TOKEN_RANGE_SEP);
- store_token("\\[en]", TOKEN_RANGE_SEP);
-}
-
-static void init_strings()
-{
- char buf[6];
- buf[0] = '\\';
- buf[1] = '*';
- for (const char *p = "'`^^,:~v_o./;"; *p; p++) {
- buf[2] = *p;
- buf[3] = '\0';
- store_token(strsave(buf), TOKEN_ACCENT);
- buf[2] = '[';
- buf[3] = *p;
- buf[4] = ']';
- buf[5] = '\0';
- store_token(strsave(buf), TOKEN_ACCENT);
- }
-
- // -ms special letters
- store_letter("\\*(th", "\\*(Th", THORN_SORT_KEY);
- store_letter("\\*[th]", "\\*[Th]", THORN_SORT_KEY);
- store_letter("\\*(d-", "\\*(D-");
- store_letter("\\*[d-]", "\\*[D-]");
- store_letter("\\*(ae", "\\*(Ae", "ae");
- store_letter("\\*[ae]", "\\*[Ae]", "ae");
- store_letter("\\*(oe", "\\*(Oe", "oe");
- store_letter("\\*[oe]", "\\*[Oe]", "oe");
-
- store_token("\\*3", TOKEN_LOWER, "y", "Y");
- store_token("\\*8", TOKEN_LOWER, "ss", "SS");
- store_token("\\*q", TOKEN_LOWER, "o", "O");
-}
-
-struct token_initer {
- token_initer();
-};
-
-static token_initer the_token_initer;
-
-token_initer::token_initer()
-{
- init_ascii();
- init_latin1();
- init_special_chars();
- init_strings();
- default_token_info.set(TOKEN_OTHER);
-}
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