diff options
Diffstat (limited to 'contrib/ncurses/ncurses/tinfo/alloc_ttype.c')
| -rw-r--r-- | contrib/ncurses/ncurses/tinfo/alloc_ttype.c | 461 |
1 files changed, 461 insertions, 0 deletions
diff --git a/contrib/ncurses/ncurses/tinfo/alloc_ttype.c b/contrib/ncurses/ncurses/tinfo/alloc_ttype.c new file mode 100644 index 000000000000..a1bf9b0733f0 --- /dev/null +++ b/contrib/ncurses/ncurses/tinfo/alloc_ttype.c @@ -0,0 +1,461 @@ +/**************************************************************************** + * Copyright (c) 1999 Free Software Foundation, Inc. * + * * + * 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, distribute with modifications, 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 ABOVE COPYRIGHT HOLDERS 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. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Thomas E. Dickey <dickey@clark.net> 1999 * + ****************************************************************************/ + + +/* + * align_ttype.c -- functions for TERMTYPE + * + * _nc_align_termtype() + * _nc_copy_termtype() + * + */ + +#include <curses.priv.h> + +#include <tic.h> +#include <term_entry.h> + +MODULE_ID("$Id: alloc_ttype.c,v 1.6 1999/03/01 22:10:44 tom Exp $") + +#if NCURSES_XNAMES +/* + * Merge the a/b lists into dst. Both a/b are sorted (see _nc_extend_names()), + * so we do not have to worry about order dependencies. + */ +static int merge_names(char **dst, char **a, int na, char **b, int nb) +{ + int n = 0; + while (na && nb) { + int cmp = strcmp(*a, *b); + if (cmp < 0) { + dst[n++] = *a++; + na--; + } else if (cmp > 0) { + dst[n++] = *b++; + nb--; + } else if (cmp == 0) { + dst[n++] = *a; + a++, b++; + na--, nb--; + } + } + while (na-- > 0) { + dst[n++] = *a++; + } + while (nb-- > 0) { + dst[n++] = *b++; + } + DEBUG(4, ("merge_names -> %d", n)); + return n; +} + +static bool find_name(char **table, int length, char *name) +{ + while (length-- > 0) { + if (!strcmp(*table++, name)) { + DEBUG(4, ("found name '%s'", name)); + return TRUE; + } + } + DEBUG(4, ("did not find name '%s'", name)); + return FALSE; +} + +static void realign_data(TERMTYPE *to, char **ext_Names, int ext_Booleans, int ext_Numbers, int ext_Strings) +{ + int n, m, base; + int limit = (to->ext_Booleans + to->ext_Numbers + to->ext_Strings); + + if (to->ext_Booleans != ext_Booleans) { + to->num_Booleans += (ext_Booleans - to->ext_Booleans); + to->Booleans = typeRealloc(char, to->num_Booleans, to->Booleans); + for (n = to->ext_Booleans-1, + m = ext_Booleans-1, + base = to->num_Booleans - (m+1); m >= 0; m--) { + if (find_name(to->ext_Names, limit, ext_Names[m])) { + to->Booleans[base + m] = to->Booleans[base + n--]; + } else { + to->Booleans[base + m] = FALSE; + } + } + to->ext_Booleans = ext_Booleans; + } + if (to->ext_Numbers != ext_Numbers) { + to->num_Numbers += (ext_Numbers - to->ext_Numbers); + to->Numbers = typeRealloc(short, to->num_Numbers, to->Numbers); + for (n = to->ext_Numbers-1, + m = ext_Numbers-1, + base = to->num_Numbers - (m+1); m >= 0; m--) { + if (find_name(to->ext_Names, limit, ext_Names[m+ext_Booleans])) { + to->Numbers[base + m] = to->Numbers[base + n--]; + } else { + to->Numbers[base + m] = ABSENT_NUMERIC; + } + } + to->ext_Numbers = ext_Numbers; + } + if (to->ext_Strings != ext_Strings) { + to->num_Strings += (ext_Strings - to->ext_Strings); + to->Strings = typeRealloc(char*, to->num_Strings, to->Strings); + for (n = to->ext_Strings-1, + m = ext_Strings-1, + base = to->num_Strings - (m+1); m >= 0; m--) { + if (find_name(to->ext_Names, limit, ext_Names[m+ext_Booleans+ext_Numbers])) { + to->Strings[base + m] = to->Strings[base + n--]; + } else { + to->Strings[base + m] = ABSENT_STRING; + } + } + to->ext_Strings = ext_Strings; + } +} + +/* + * Returns the first index in ext_Names[] for the given token-type + */ +static int _nc_first_ext_name(TERMTYPE *tp, int token_type) +{ + int first; + + switch (token_type) { + case BOOLEAN: + first = 0; + break; + case NUMBER: + first = tp->ext_Booleans; + break; + case STRING: + first = tp->ext_Booleans + tp->ext_Numbers; + break; + default: + first = 0; + break; + } + return first; +} + +/* + * Returns the last index in ext_Names[] for the given token-type + */ +static int _nc_last_ext_name(TERMTYPE *tp, int token_type) +{ + int last; + + switch (token_type) { + case BOOLEAN: + last = tp->ext_Booleans; + break; + case NUMBER: + last = tp->ext_Booleans + tp->ext_Numbers; + break; + default: + case STRING: + last = NUM_EXT_NAMES(tp); + break; + } + return last; +} + +/* + * Lookup an entry from extended-names, returning -1 if not found + */ +static int _nc_find_ext_name(TERMTYPE *tp, char *name, int token_type) +{ + unsigned j; + unsigned first = _nc_first_ext_name(tp, token_type); + unsigned last = _nc_last_ext_name(tp, token_type); + + for (j = first; j < last; j++) { + if (!strcmp(name, tp->ext_Names[j])) { + return j; + } + } + return -1; +} + +/* + * Translate an index into ext_Names[] into the corresponding index into data + * (e.g., Booleans[]). + */ +static int _nc_ext_data_index(TERMTYPE *tp, int n, int token_type) +{ + switch (token_type) { + case BOOLEAN: + n += (tp->num_Booleans - tp->ext_Booleans); + break; + case NUMBER: + n += (tp->num_Numbers - tp->ext_Numbers) + - (tp->ext_Booleans); + break; + default: + case STRING: + n += (tp->num_Strings - tp->ext_Strings) + - (tp->ext_Booleans + tp->ext_Numbers); + } + return n; +} + +/* + * Adjust tables to remove (not free) an extended name and its corresponding + * data. + */ +static void _nc_del_ext_name(TERMTYPE *tp, char *name, int token_type) +{ + int j; + int first, last; + + if ((first = _nc_find_ext_name(tp, name, token_type)) >= 0) { + last = NUM_EXT_NAMES(tp) - 1; + for (j = first; j < last; j++) { + tp->ext_Names[j] = tp->ext_Names[j+1]; + } + first = _nc_ext_data_index(tp, first, token_type); + switch (token_type) { + case BOOLEAN: + last = tp->num_Booleans - 1; + for (j = first; j < last; j++) + tp->Booleans[j] = tp->Booleans[j+1]; + tp->ext_Booleans -= 1; + tp->num_Booleans -= 1; + break; + case NUMBER: + last = tp->num_Numbers - 1; + for (j = first; j < last; j++) + tp->Numbers[j] = tp->Numbers[j+1]; + tp->ext_Numbers -= 1; + tp->num_Numbers -= 1; + break; + case STRING: + last = tp->num_Strings - 1; + for (j = first; j < last; j++) + tp->Strings[j] = tp->Strings[j+1]; + tp->ext_Strings -= 1; + tp->num_Strings -= 1; + break; + } + } +} + +/* + * Adjust tables to insert an extended name, making room for new data. The + * index into the corresponding data array is returned. + */ +static int _nc_ins_ext_name(TERMTYPE *tp, char *name, int token_type) +{ + unsigned first = _nc_first_ext_name(tp, token_type); + unsigned last = _nc_last_ext_name(tp, token_type); + unsigned total = NUM_EXT_NAMES(tp) + 1; + unsigned j, k; + + for (j = first; j < last; j++) { + int cmp = strcmp(name, tp->ext_Names[j]); + if (cmp == 0) + /* already present */ + return _nc_ext_data_index(tp, j, token_type); + if (cmp < 0) { + break; + } + } + + tp->ext_Names = typeRealloc(char *, total, tp->ext_Names); + for (k = total-1; k > j; k--) + tp->ext_Names[k] = tp->ext_Names[k-1]; + tp->ext_Names[j] = name; + j = _nc_ext_data_index(tp, j, token_type); + + switch (token_type) { + case BOOLEAN: + tp->ext_Booleans += 1; + tp->num_Booleans += 1; + tp->Booleans = typeRealloc(char, tp->num_Booleans, tp->Booleans); + for (k = tp->num_Booleans-1; k > j; k--) + tp->Booleans[k] = tp->Booleans[k-1]; + break; + case NUMBER: + tp->ext_Numbers += 1; + tp->num_Numbers += 1; + tp->Numbers = typeRealloc(short, tp->num_Numbers, tp->Numbers); + for (k = tp->num_Numbers-1; k > j; k--) + tp->Numbers[k] = tp->Numbers[k-1]; + break; + case STRING: + tp->ext_Strings += 1; + tp->num_Strings += 1; + tp->Strings = typeRealloc(char *, tp->num_Strings, tp->Strings); + for (k = tp->num_Strings-1; k > j; k--) + tp->Strings[k] = tp->Strings[k-1]; + break; + } + return j; +} + +/* + * Look for strings that are marked cancelled, which happen to be the same name + * as a boolean or number. We'll get this as a special case when we get a + * cancellation of a name that is inherited from another entry. + */ +static void adjust_cancels(TERMTYPE *to, TERMTYPE *from) +{ + int first = to->ext_Booleans + to->ext_Numbers; + int last = first + to->ext_Strings; + int j, k; + + for (j = first; j < last; ) { + char *name = to->ext_Names[j]; + unsigned j_str = to->num_Strings - first - to->ext_Strings; + + if (to->Strings[j + j_str] == CANCELLED_STRING) { + if ((k = _nc_find_ext_name(from, to->ext_Names[j], BOOLEAN)) >= 0) { + _nc_del_ext_name(to, name, STRING); + k = _nc_ins_ext_name(to, name, BOOLEAN); + to->Booleans[k] = FALSE; + } else if ((k = _nc_find_ext_name(from, to->ext_Names[j], NUMBER)) >= 0) { + _nc_del_ext_name(to, name, STRING); + k = _nc_ins_ext_name(to, name, NUMBER); + to->Numbers[k] = CANCELLED_NUMERIC; + } + } else { + j++; + } + } +} + +void _nc_align_termtype(TERMTYPE *to, TERMTYPE *from) +{ + int na = NUM_EXT_NAMES(to); + int nb = NUM_EXT_NAMES(from); + int n; + bool same; + char **ext_Names; + int ext_Booleans, ext_Numbers, ext_Strings; + + DEBUG(2, ("align_termtype to(%d:%s), from(%d:%s)", na, to->term_names, nb, from->term_names)); + + if (na != 0 || nb != 0) { + if ((na == nb) /* check if the arrays are equivalent */ + && (to->ext_Booleans == from->ext_Booleans) + && (to->ext_Numbers == from->ext_Numbers) + && (to->ext_Strings == from->ext_Strings)) { + for (n = 0, same = TRUE; n < na; n++) { + if (strcmp(to->ext_Names[n], from->ext_Names[n])) { + same = FALSE; + break; + } + } + if (same) + return; + } + /* + * This is where we pay for having a simple extension representation. + * Allocate a new ext_Names array and merge the two ext_Names arrays + * into it, updating to's counts for booleans, etc. Fortunately we do + * this only for the terminfo compiler (tic) and comparer (infocmp). + */ + ext_Names = typeMalloc(char *, na+nb); + + if (to->ext_Strings && (from->ext_Booleans + from->ext_Numbers)) + adjust_cancels(to, from); + + if (from->ext_Strings && (to->ext_Booleans + to->ext_Numbers)) + adjust_cancels(from, to); + + ext_Booleans = merge_names(ext_Names, + to->ext_Names, + to->ext_Booleans, + from->ext_Names, + from->ext_Booleans); + ext_Numbers = merge_names(ext_Names + ext_Booleans, + to->ext_Names + + to->ext_Booleans, + to->ext_Numbers, + from->ext_Names + + from->ext_Booleans, + from->ext_Numbers); + ext_Strings = merge_names(ext_Names + ext_Numbers + ext_Booleans, + to->ext_Names + + to->ext_Booleans + + to->ext_Numbers, + to->ext_Strings, + from->ext_Names + + from->ext_Booleans + + from->ext_Numbers, + from->ext_Strings); + /* + * Now we must reallocate the Booleans, etc., to allow the data to be + * overlaid. + */ + if (na != (ext_Booleans + ext_Numbers + ext_Strings)) { + realign_data(to, ext_Names, ext_Booleans, ext_Numbers, ext_Strings); + free(to->ext_Names); + to->ext_Names = ext_Names; + DEBUG(2, ("realigned %d extended names for '%s' (to)", NUM_EXT_NAMES(to), to->term_names)); + } + if (nb != (ext_Booleans + ext_Numbers + ext_Strings)) { + nb = (ext_Booleans + ext_Numbers + ext_Strings); + realign_data(from, ext_Names, ext_Booleans, ext_Numbers, ext_Strings); + from->ext_Names = typeRealloc(char *, nb, from->ext_Names); + memcpy(from->ext_Names, ext_Names, sizeof(char *) * nb); + DEBUG(2, ("realigned %d extended names for '%s' (from)", NUM_EXT_NAMES(from), from->term_names)); + } + } +} +#endif + +void _nc_copy_termtype(TERMTYPE *dst, TERMTYPE *src) +{ + int i; + + *dst = *src; /* ...to copy the sizes and string-tables */ + dst->Booleans = typeMalloc(char, NUM_BOOLEANS(dst)); + dst->Numbers = typeMalloc(short, NUM_NUMBERS(dst)); + dst->Strings = typeMalloc(char *, NUM_STRINGS(dst)); + + /* FIXME: use memcpy for these and similar loops */ + for_each_boolean(i,dst) + dst->Booleans[i] = src->Booleans[i]; + for_each_number(i,dst) + dst->Numbers[i] = src->Numbers[i]; + for_each_string(i,dst) + dst->Strings[i] = src->Strings[i]; + + /* FIXME: we probably should also copy str_table and ext_str_table, + * but tic and infocmp are not written to exploit that (yet). + */ + +#if NCURSES_XNAMES + if ((i = NUM_EXT_NAMES(src)) != 0) { + dst->ext_Names = typeMalloc(char *, i); + memcpy(dst->ext_Names, src->ext_Names, i * sizeof(char *)); + } +#endif + +} |