/****************************************************************************
- * Copyright (c) 2005 Free Software Foundation, Inc. *
+ * Copyright (c) 2005-2012,2017 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 *
#include <ctype.h>
#include <tic.h>
-#include <term_entry.h>
-MODULE_ID("$Id: trim_sgr0.c,v 1.5 2005/07/17 00:13:24 tom Exp $")
+MODULE_ID("$Id: trim_sgr0.c,v 1.17 2017/08/26 14:54:16 tom Exp $")
#undef CUR
#define CUR tp->
#define L_BRACK '['
static char *
-set_attribute_9(TERMTYPE *tp, int flag)
+set_attribute_9(TERMTYPE2 *tp, int flag)
{
- const char *result;
+ const char *value;
+ char *result;
- if ((result = tparm(set_attributes, 0, 0, 0, 0, 0, 0, 0, 0, flag)) == 0)
- result = "";
- return strdup(result);
+ value = tparm(set_attributes, 0, 0, 0, 0, 0, 0, 0, 0, flag);
+ if (PRESENT(value))
+ result = strdup(value);
+ else
+ result = 0;
+ return result;
}
static int
is_csi(const char *s)
{
- if (UChar(s[0]) == CSI)
- return 1;
- else if (s[0] == ESC && s[1] == L_BRACK)
- return 2;
- return 0;
+ int result = 0;
+ if (s != 0) {
+ if (UChar(s[0]) == CSI)
+ result = 1;
+ else if (s[0] == ESC && s[1] == L_BRACK)
+ result = 2;
+ }
+ return result;
}
static char *
{
if (s[0] == '$' && s[1] == '<') {
s += 2;
- while ((*s != '\0') && (isdigit(*s) || *s == '/'))
+ while (isdigit(UChar(*s)) || *s == '/')
++s;
if (*s == '>')
++s;
static bool
rewrite_sgr(char *s, char *attr)
{
- if (PRESENT(s)) {
+ if (s != 0) {
if (PRESENT(attr)) {
- unsigned len_s = strlen(s);
- unsigned len_a = strlen(attr);
+ size_t len_s = strlen(s);
+ size_t len_a = strlen(attr);
if (len_s > len_a && !strncmp(attr, s, len_a)) {
unsigned n;
for (n = 0; n < len_s - len_a; ++n) {
s[n] = s[n + len_a];
}
- strcpy(s + n, attr);
+ _nc_STRCPY(s + n, attr, strlen(s) + 1);
TR(TRACE_DATABASE, ("to:\n\t%s", s));
}
}
similar_sgr(char *a, char *b)
{
bool result = FALSE;
- int csi_a = is_csi(a);
- int csi_b = is_csi(b);
- unsigned len_a;
- unsigned len_b;
+ if (a != 0 && b != 0) {
+ int csi_a = is_csi(a);
+ int csi_b = is_csi(b);
+ size_t len_a;
+ size_t len_b;
- TR(TRACE_DATABASE, ("similar_sgr:\n\t%s\n\t%s",
- _nc_visbuf2(1, a),
- _nc_visbuf2(2, b)));
- if (csi_a != 0 && csi_b != 0 && csi_a == csi_b) {
- a += csi_a;
- b += csi_b;
- if (*a != *b) {
- a = skip_zero(a);
- b = skip_zero(b);
+ TR(TRACE_DATABASE, ("similar_sgr:\n\t%s\n\t%s",
+ _nc_visbuf2(1, a),
+ _nc_visbuf2(2, b)));
+ if (csi_a != 0 && csi_b != 0 && csi_a == csi_b) {
+ a += csi_a;
+ b += csi_b;
+ if (*a != *b) {
+ a = skip_zero(a);
+ b = skip_zero(b);
+ }
}
+ len_a = strlen(a);
+ len_b = strlen(b);
+ if (len_a && len_b) {
+ if (len_a > len_b)
+ result = (strncmp(a, b, len_b) == 0);
+ else
+ result = (strncmp(a, b, len_a) == 0);
+ }
+ TR(TRACE_DATABASE, ("...similar_sgr: %d\n\t%s\n\t%s", result,
+ _nc_visbuf2(1, a),
+ _nc_visbuf2(2, b)));
}
- len_a = strlen(a);
- len_b = strlen(b);
- if (len_a && len_b) {
- if (len_a > len_b)
- result = (strncmp(a, b, len_b) == 0);
- else
- result = (strncmp(a, b, len_a) == 0);
- }
- TR(TRACE_DATABASE, ("...similar_sgr: %d\n\t%s\n\t%s", result,
- _nc_visbuf2(1, a),
- _nc_visbuf2(2, b)));
return result;
}
* Returns the number of chars from 'full' that we matched. If any mismatch
* occurs, return zero.
*/
-static int
+static unsigned
compare_part(const char *part, const char *full)
{
const char *next_part;
const char *next_full;
- int used_full = 0;
- int used_delay = 0;
+ unsigned used_full = 0;
+ unsigned used_delay = 0;
while (*part != 0) {
if (*part != *full) {
next_part = skip_delay(part);
next_full = skip_delay(full);
if (next_part != part && next_full != full) {
- used_delay += (next_full - full);
+ used_delay += (unsigned) (next_full - full);
full = next_full;
part = next_part;
continue;
* an error occurs, or the original sgr0 if no change is needed.
*/
NCURSES_EXPORT(char *)
-_nc_trim_sgr0(TERMTYPE *tp)
+_nc_trim_sgr0(TERMTYPE2 *tp)
{
char *result = exit_attribute_mode;
if (!rewrite_sgr(on, enter_alt_charset_mode)
|| !rewrite_sgr(off, exit_alt_charset_mode)
|| !rewrite_sgr(end, exit_alt_charset_mode)) {
- FreeIfNeeded(on);
FreeIfNeeded(off);
- FreeIfNeeded(end);
} else if (similar_sgr(off, end)
&& !similar_sgr(off, on)) {
TR(TRACE_DATABASE, ("adjusting sgr(9:off) : %s", _nc_visbuf(off)));
/*
* If rmacs is a substring of sgr(0), remove that chunk.
*/
- if (exit_alt_charset_mode != 0) {
+ if (PRESENT(exit_alt_charset_mode)) {
TR(TRACE_DATABASE, ("scan for rmacs %s", _nc_visbuf(exit_alt_charset_mode)));
j = strlen(off);
k = strlen(exit_alt_charset_mode);
if (j > k) {
for (i = 0; i <= (j - k); ++i) {
- int k2 = compare_part(exit_alt_charset_mode, off + i);
+ unsigned k2 = compare_part(exit_alt_charset_mode,
+ off + i);
if (k2 != 0) {
found = TRUE;
- chop_out(off, i, i + k2);
+ chop_out(off, (unsigned) i, (unsigned) (i + k2));
break;
}
}
* SGR 10 would reset to normal font.
*/
if (!found) {
- if ((i = is_csi(off)) != 0
+ if ((i = (size_t) is_csi(off)) != 0
&& off[strlen(off) - 1] == 'm') {
TR(TRACE_DATABASE, ("looking for SGR 10 in %s",
_nc_visbuf(off)));
tmp = skip_zero(off + i);
if (tmp[0] == '1'
&& skip_zero(tmp + 1) != tmp + 1) {
- i = tmp - off;
+ i = (size_t) (tmp - off);
if (off[i - 1] == ';')
i--;
- j = skip_zero(tmp + 1) - off;
- i = chop_out(off, i, j);
+ j = (size_t) (skip_zero(tmp + 1) - off);
+ (void) chop_out(off, (unsigned) i, (unsigned) j);
found = TRUE;
}
}
if (!found
&& (tmp = strstr(end, off)) != 0
&& strcmp(end, off) != 0) {
- i = tmp - end;
+ i = (size_t) (tmp - end);
j = strlen(off);
tmp = strdup(end);
- chop_out(tmp, i, j);
+ chop_out(tmp, (unsigned) i, (unsigned) j);
free(off);
result = tmp;
}
*/
free(off);
}
- free(end);
- free(on);
+ FreeIfNeeded(end);
+ FreeIfNeeded(on);
} else {
/*
* Possibly some applications are confused if sgr0 contains rmacs,
projects / ncurses.git / blobdiff