diff options
Diffstat (limited to 'src/lib/krb5/unicode/ucdata/ucpgba.c')
| -rw-r--r-- | src/lib/krb5/unicode/ucdata/ucpgba.c | 755 |
1 files changed, 0 insertions, 755 deletions
diff --git a/src/lib/krb5/unicode/ucdata/ucpgba.c b/src/lib/krb5/unicode/ucdata/ucpgba.c deleted file mode 100644 index 5190703..0000000 --- a/src/lib/krb5/unicode/ucdata/ucpgba.c +++ /dev/null @@ -1,755 +0,0 @@ -/* - * Copyright 1998-2008 The OpenLDAP Foundation. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted only as authorized by the OpenLDAP - * Public License. - * - * A copy of this license is available in file LICENSE in the - * top-level directory of the distribution or, alternatively, at - * <https://www.OpenLDAP.org/license.html>. - */ -/* Copyright 2001 Computing Research Labs, New Mexico State University - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY - * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT - * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR - * THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * This work is part of OpenLDAP Software <https://www.openldap.org/>. - * $OpenLDAP: pkg/ldap/libraries/liblunicode/ucdata/ucpgba.c,v 1.9 2008/01/07 23:20:05 kurt Exp $ - * $Id: ucpgba.c,v 1.5 2001/01/02 18:46:20 mleisher Exp $ - */ - -#include "k5-int.h" -#include "k5-utf8.h" -#include "k5-unicode.h" - -#include <stdio.h> -#include <stdlib.h> - -#include "ucdata.h" -#include "ucpgba.h" - -/* - * These macros are used while reordering of RTL runs of text for the - * special case of non-spacing characters being in runs of weakly - * directional text. They check for weak and non-spacing, and digits and - * non-spacing. - */ -#define ISWEAKSPECIAL(cc) ucisprop(cc, UC_EN|UC_ES|UC_MN, UC_ET|UC_AN|UC_CS) -#define ISDIGITSPECIAL(cc) ucisprop(cc, UC_ND|UC_MN, 0) - -/* - * These macros are used while breaking a string into runs of text in - * different directions. Descriptions: - * - * ISLTR_LTR - Test for members of an LTR run in an LTR context. This looks - * for characters with ltr, non-spacing, weak, and neutral - * properties. - * - * ISRTL_RTL - Test for members of an RTL run in an RTL context. This looks - * for characters with rtl, non-spacing, weak, and neutral - * properties. - * - * ISRTL_NEUTRAL - Test for RTL or neutral characters. - * - * ISWEAK_NEUTRAL - Test for weak or neutral characters. - */ -#define ISLTR_LTR(cc) ucisprop(cc, UC_L|UC_MN|UC_EN|UC_ES,\ - UC_ET|UC_CS|UC_B|UC_S|UC_WS|UC_ON) - -#define ISRTL_RTL(cc) ucisprop(cc, UC_R|UC_MN|UC_EN|UC_ES,\ - UC_ET|UC_AN|UC_CS|UC_B|UC_S|UC_WS|UC_ON) - -#define ISRTL_NEUTRAL(cc) ucisprop(cc, UC_R, UC_B|UC_S|UC_WS|UC_ON) -#define ISWEAK_NEUTRAL(cc) ucisprop(cc, UC_EN|UC_ES, \ - UC_B|UC_S|UC_WS|UC_ON|UC_ET|UC_AN|UC_CS) - -/* - * This table is temporarily hard-coded here until it can be constructed - * automatically somehow. - */ -static unsigned long _symmetric_pairs[] = { - 0x0028, 0x0029, 0x0029, 0x0028, 0x003C, 0x003E, 0x003E, 0x003C, - 0x005B, 0x005D, 0x005D, 0x005B, 0x007B, 0x007D, 0x007D, 0x007B, - 0x2045, 0x2046, 0x2046, 0x2045, 0x207D, 0x207E, 0x207E, 0x207D, - 0x208D, 0x208E, 0x208E, 0x208D, 0x3008, 0x3009, 0x3009, 0x3008, - 0x300A, 0x300B, 0x300B, 0x300A, 0x300C, 0x300D, 0x300D, 0x300C, - 0x300E, 0x300F, 0x300F, 0x300E, 0x3010, 0x3011, 0x3011, 0x3010, - 0x3014, 0x3015, 0x3015, 0x3014, 0x3016, 0x3017, 0x3017, 0x3016, - 0x3018, 0x3019, 0x3019, 0x3018, 0x301A, 0x301B, 0x301B, 0x301A, - 0xFD3E, 0xFD3F, 0xFD3F, 0xFD3E, 0xFE59, 0xFE5A, 0xFE5A, 0xFE59, - 0xFE5B, 0xFE5C, 0xFE5C, 0xFE5B, 0xFE5D, 0xFE5E, 0xFE5E, 0xFE5D, - 0xFF08, 0xFF09, 0xFF09, 0xFF08, 0xFF3B, 0xFF3D, 0xFF3D, 0xFF3B, - 0xFF5B, 0xFF5D, 0xFF5D, 0xFF5B, 0xFF62, 0xFF63, 0xFF63, 0xFF62, -}; - -static int _symmetric_pairs_size = -sizeof(_symmetric_pairs)/sizeof(_symmetric_pairs[0]); - -/* - * This routine looks up the other form of a symmetric pair. - */ -static unsigned long -_ucsymmetric_pair(unsigned long c) -{ - int i; - - for (i = 0; i < _symmetric_pairs_size; i += 2) { - if (_symmetric_pairs[i] == c) - return _symmetric_pairs[i+1]; - } - return c; -} - -/* - * This routine creates a new run, copies the text into it, links it into the - * logical text order chain and returns it to the caller to be linked into - * the visual text order chain. - */ -static ucrun_t * -_add_run(ucstring_t *str, unsigned long *src, - unsigned long start, unsigned long end, int direction) -{ - long i, t; - ucrun_t *run; - - run = (ucrun_t *) malloc(sizeof(ucrun_t)); - run->visual_next = run->visual_prev = 0; - run->direction = direction; - - run->cursor = ~0; - - run->chars = (unsigned long *) - malloc(sizeof(unsigned long) * ((end - start) << 1)); - run->positions = run->chars + (end - start); - - run->source = src; - run->start = start; - run->end = end; - - if (direction == UCPGBA_RTL) { - /* - * Copy the source text into the run in reverse order and select - * replacements for the pairwise punctuation and the <> characters. - */ - for (i = 0, t = end - 1; start < end; start++, t--, i++) { - run->positions[i] = t; - if (ucissymmetric(src[t]) || src[t] == '<' || src[t] == '>') - run->chars[i] = _ucsymmetric_pair(src[t]); - else - run->chars[i] = src[t]; - } - } else { - /* - * Copy the source text into the run directly. - */ - for (i = start; i < end; i++) { - run->positions[i - start] = i; - run->chars[i - start] = src[i]; - } - } - - /* - * Add the run to the logical list for cursor traversal. - */ - if (str->logical_first == 0) - str->logical_first = str->logical_last = run; - else { - run->logical_prev = str->logical_last; - str->logical_last->logical_next = run; - str->logical_last = run; - } - - return run; -} - -static void -_ucadd_rtl_segment(ucstring_t *str, unsigned long *source, unsigned long start, - unsigned long end) -{ - unsigned long s, e; - ucrun_t *run, *lrun; - - /* - * This is used to splice runs into strings with overall LTR direction. - * The `lrun' variable will never be NULL because at least one LTR run was - * added before this RTL run. - */ - lrun = str->visual_last; - - for (e = s = start; s < end;) { - for (; e < end && ISRTL_NEUTRAL(source[e]); e++) ; - - if (e > s) { - run = _add_run(str, source, s, e, UCPGBA_RTL); - - /* - * Add the run to the visual list for cursor traversal. - */ - if (str->visual_first != 0) { - if (str->direction == UCPGBA_LTR) { - run->visual_prev = lrun; - run->visual_next = lrun->visual_next; - if (lrun->visual_next != 0) - lrun->visual_next->visual_prev = run; - lrun->visual_next = run; - if (lrun == str->visual_last) - str->visual_last = run; - } else { - run->visual_next = str->visual_first; - str->visual_first->visual_prev = run; - str->visual_first = run; - } - } else - str->visual_first = str->visual_last = run; - } - - /* - * Handle digits in a special way. This makes sure the weakly - * directional characters appear on the expected sides of a number - * depending on whether that number is Arabic or not. - */ - for (s = e; e < end && ISWEAKSPECIAL(source[e]); e++) { - if (!ISDIGITSPECIAL(source[e]) && - (e + 1 == end || !ISDIGITSPECIAL(source[e + 1]))) - break; - } - - if (e > s) { - run = _add_run(str, source, s, e, UCPGBA_LTR); - - /* - * Add the run to the visual list for cursor traversal. - */ - if (str->visual_first != 0) { - if (str->direction == UCPGBA_LTR) { - run->visual_prev = lrun; - run->visual_next = lrun->visual_next; - if (lrun->visual_next != 0) - lrun->visual_next->visual_prev = run; - lrun->visual_next = run; - if (lrun == str->visual_last) - str->visual_last = run; - } else { - run->visual_next = str->visual_first; - str->visual_first->visual_prev = run; - str->visual_first = run; - } - } else - str->visual_first = str->visual_last = run; - } - - /* - * Collect all weak non-digit sequences for an RTL segment. These - * will appear as part of the next RTL segment or will be added as - * an RTL segment by themselves. - */ - for (s = e; e < end && ucisweak(source[e]) && !ucisdigit(source[e]); - e++) ; - } - - /* - * Capture any weak non-digit sequences that occur at the end of the RTL - * run. - */ - if (e > s) { - run = _add_run(str, source, s, e, UCPGBA_RTL); - - /* - * Add the run to the visual list for cursor traversal. - */ - if (str->visual_first != 0) { - if (str->direction == UCPGBA_LTR) { - run->visual_prev = lrun; - run->visual_next = lrun->visual_next; - if (lrun->visual_next != 0) - lrun->visual_next->visual_prev = run; - lrun->visual_next = run; - if (lrun == str->visual_last) - str->visual_last = run; - } else { - run->visual_next = str->visual_first; - str->visual_first->visual_prev = run; - str->visual_first = run; - } - } else - str->visual_first = str->visual_last = run; - } -} - -static void -_ucadd_ltr_segment(ucstring_t *str, unsigned long *source, unsigned long start, - unsigned long end) -{ - ucrun_t *run; - - run = _add_run(str, source, start, end, UCPGBA_LTR); - - /* - * Add the run to the visual list for cursor traversal. - */ - if (str->visual_first != 0) { - if (str->direction == UCPGBA_LTR) { - run->visual_prev = str->visual_last; - str->visual_last->visual_next = run; - str->visual_last = run; - } else { - run->visual_next = str->visual_first; - str->visual_first->visual_prev = run; - str->visual_first = run; - } - } else - str->visual_first = str->visual_last = run; -} - -ucstring_t * -ucstring_create(unsigned long *source, unsigned long start, unsigned long end, - int default_direction, int cursor_motion) -{ - int rtl_first; - unsigned long s, e, ld; - ucstring_t *str; - - str = (ucstring_t *) malloc(sizeof(ucstring_t)); - - /* - * Set the initial values. - */ - str->cursor_motion = cursor_motion; - str->logical_first = str->logical_last = 0; - str->visual_first = str->visual_last = str->cursor = 0; - str->source = source; - str->start = start; - str->end = end; - - /* - * If the length of the string is 0, then just return it at this point. - */ - if (start == end) - return str; - - /* - * This flag indicates whether the collection loop for RTL is called - * before the LTR loop the first time. - */ - rtl_first = 0; - - /* - * Look for the first character in the string that has strong - * directionality. - */ - for (s = start; s < end && !ucisstrong(source[s]); s++) ; - - if (s == end) - /* - * If the string contains no characters with strong directionality, use - * the default direction. - */ - str->direction = default_direction; - else - str->direction = ucisrtl(source[s]) ? UCPGBA_RTL : UCPGBA_LTR; - - if (str->direction == UCPGBA_RTL) - /* - * Set the flag that causes the RTL collection loop to run first. - */ - rtl_first = 1; - - /* - * This loop now separates the string into runs based on directionality. - */ - for (s = e = 0; s < end; s = e) { - if (!rtl_first) { - /* - * Determine the next run of LTR text. - */ - - ld = s; - while (e < end && ISLTR_LTR(source[e])) { - if (ucisdigit(source[e]) && - !(0x660 <= source[e] && source[e] <= 0x669)) - ld = e; - e++; - } - if (str->direction != UCPGBA_LTR) { - while (e > ld && ISWEAK_NEUTRAL(source[e - 1])) - e--; - } - - /* - * Add the LTR segment to the string. - */ - if (e > s) - _ucadd_ltr_segment(str, source, s, e); - } - - /* - * Determine the next run of RTL text. - */ - ld = s = e; - while (e < end && ISRTL_RTL(source[e])) { - if (ucisdigit(source[e]) && - !(0x660 <= source[e] && source[e] <= 0x669)) - ld = e; - e++; - } - if (str->direction != UCPGBA_RTL) { - while (e > ld && ISWEAK_NEUTRAL(source[e - 1])) - e--; - } - - /* - * Add the RTL segment to the string. - */ - if (e > s) - _ucadd_rtl_segment(str, source, s, e); - - /* - * Clear the flag that allowed the RTL collection loop to run first - * for strings with overall RTL directionality. - */ - rtl_first = 0; - } - - /* - * Set up the initial cursor run. - */ - str->cursor = str->logical_first; - if (str != 0) - str->cursor->cursor = (str->cursor->direction == UCPGBA_RTL) ? - str->cursor->end - str->cursor->start : 0; - - return str; -} - -void -ucstring_free(ucstring_t *s) -{ - ucrun_t *l, *r; - - if (s == 0) - return; - - for (l = 0, r = s->visual_first; r != 0; r = r->visual_next) { - if (r->end > r->start) - free((char *) r->chars); - if (l) - free((char *) l); - l = r; - } - if (l) - free((char *) l); - - free((char *) s); -} - -int -ucstring_set_cursor_motion(ucstring_t *str, int cursor_motion) -{ - int n; - - if (str == 0) - return -1; - - n = str->cursor_motion; - str->cursor_motion = cursor_motion; - return n; -} - -static int -_ucstring_visual_cursor_right(ucstring_t *str, int count) -{ - int cnt = count; - unsigned long size; - ucrun_t *cursor; - - if (str == 0) - return 0; - - cursor = str->cursor; - while (cnt > 0) { - size = cursor->end - cursor->start; - if ((cursor->direction == UCPGBA_RTL && cursor->cursor + 1 == size) || - cursor->cursor + 1 > size) { - /* - * If the next run is NULL, then the cursor is already on the - * far right end already. - */ - if (cursor->visual_next == 0) - /* - * If movement occured, then report it. - */ - return (cnt != count); - - /* - * Move to the next run. - */ - str->cursor = cursor = cursor->visual_next; - cursor->cursor = (cursor->direction == UCPGBA_RTL) ? -1 : 0; - size = cursor->end - cursor->start; - } else - cursor->cursor++; - cnt--; - } - return 1; -} - -static int -_ucstring_logical_cursor_right(ucstring_t *str, int count) -{ - int cnt = count; - unsigned long size; - ucrun_t *cursor; - - if (str == 0) - return 0; - - cursor = str->cursor; - while (cnt > 0) { - size = cursor->end - cursor->start; - if (str->direction == UCPGBA_RTL) { - if (cursor->direction == UCPGBA_RTL) { - if (cursor->cursor + 1 == size) { - if (cursor == str->logical_first) - /* - * Already at the beginning of the string. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_prev; - size = cursor->end - cursor->start; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - size : 0; - } else - cursor->cursor++; - } else { - if (cursor->cursor == 0) { - if (cursor == str->logical_first) - /* - * At the beginning of the string already. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_prev; - size = cursor->end - cursor->start; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - size : 0; - } else - cursor->cursor--; - } - } else { - if (cursor->direction == UCPGBA_RTL) { - if (cursor->cursor == 0) { - if (cursor == str->logical_last) - /* - * Already at the end of the string. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_next; - size = cursor->end - cursor->start; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - 0 : size - 1; - } else - cursor->cursor--; - } else { - if (cursor->cursor + 1 > size) { - if (cursor == str->logical_last) - /* - * Already at the end of the string. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_next; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - 0 : size - 1; - } else - cursor->cursor++; - } - } - cnt--; - } - return 1; -} - -int -ucstring_cursor_right(ucstring_t *str, int count) -{ - if (str == 0) - return 0; - return (str->cursor_motion == UCPGBA_CURSOR_VISUAL) ? - _ucstring_visual_cursor_right(str, count) : - _ucstring_logical_cursor_right(str, count); -} - -static int -_ucstring_visual_cursor_left(ucstring_t *str, int count) -{ - int cnt = count; - unsigned long size; - ucrun_t *cursor; - - if (str == 0) - return 0; - - cursor = str->cursor; - while (cnt > 0) { - size = cursor->end - cursor->start; - if ((cursor->direction == UCPGBA_LTR && cursor->cursor == 0) || - cursor->cursor - 1 < -1) { - /* - * If the preceding run is NULL, then the cursor is already on the - * far left end already. - */ - if (cursor->visual_prev == 0) - /* - * If movement occured, then report it. - */ - return (cnt != count); - - /* - * Move to the previous run. - */ - str->cursor = cursor = cursor->visual_prev; - size = cursor->end - cursor->start; - cursor->cursor = (cursor->direction == UCPGBA_RTL) ? - size : size - 1; - } else - cursor->cursor--; - cnt--; - } - return 1; -} - -static int -_ucstring_logical_cursor_left(ucstring_t *str, int count) -{ - int cnt = count; - unsigned long size; - ucrun_t *cursor; - - if (str == 0) - return 0; - - cursor = str->cursor; - while (cnt > 0) { - size = cursor->end - cursor->start; - if (str->direction == UCPGBA_RTL) { - if (cursor->direction == UCPGBA_RTL) { - if (cursor->cursor == -1) { - if (cursor == str->logical_last) - /* - * Already at the end of the string. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_next; - size = cursor->end - cursor->start; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - 0 : size - 1; - } else - cursor->cursor--; - } else { - if (cursor->cursor + 1 > size) { - if (cursor == str->logical_last) - /* - * At the end of the string already. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_next; - size = cursor->end - cursor->start; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - 0 : size - 1; - } else - cursor->cursor++; - } - } else { - if (cursor->direction == UCPGBA_RTL) { - if (cursor->cursor + 1 == size) { - if (cursor == str->logical_first) - /* - * Already at the beginning of the string. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_prev; - size = cursor->end - cursor->start; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - size : 0; - } else - cursor->cursor++; - } else { - if (cursor->cursor == 0) { - if (cursor == str->logical_first) - /* - * Already at the beginning of the string. - */ - return (cnt != count); - - str->cursor = cursor = cursor->logical_prev; - cursor->cursor = (cursor->direction == UCPGBA_LTR) ? - size : 0; - } else - cursor->cursor--; - } - } - cnt--; - } - return 1; -} - -int -ucstring_cursor_left(ucstring_t *str, int count) -{ - if (str == 0) - return 0; - return (str->cursor_motion == UCPGBA_CURSOR_VISUAL) ? - _ucstring_visual_cursor_left(str, count) : - _ucstring_logical_cursor_left(str, count); -} - -void -ucstring_cursor_info(ucstring_t *str, int *direction, unsigned long *position) -{ - long c; - unsigned long size; - ucrun_t *cursor; - - if (str == 0 || direction == 0 || position == 0) - return; - - cursor = str->cursor; - - *direction = cursor->direction; - - c = cursor->cursor; - size = cursor->end - cursor->start; - - if (c == size) - *position = (cursor->direction == UCPGBA_RTL) ? - cursor->start : cursor->positions[c - 1]; - else if (c == -1) - *position = (cursor->direction == UCPGBA_RTL) ? - cursor->end : cursor->start; - else - *position = cursor->positions[c]; -} |