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miscellaneous fixes: skip over invalid wide characters, and if wcwidth()
returns -1, don't add its value to any column counter; also update another copyright year git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2219 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
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18
src/utils.c
18
src/utils.c
@ -2,7 +2,7 @@
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/**************************************************************************
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* utils.c *
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* *
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* Copyright (C) 1999-2004 Chris Allegretta *
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* Copyright (C) 1999-2005 Chris Allegretta *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2, or (at your option) *
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@ -188,16 +188,24 @@ int parse_char(const char *str, int *chr, size_t *col
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(*col)++;
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wide_str = control_rep((unsigned char)wide_str);
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if (wctomb(ctrl_wide_str, (wchar_t)wide_str) != -1)
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*col += wcwidth(wide_str);
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if (wctomb(ctrl_wide_str, (wchar_t)wide_str) != -1) {
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int width = wcwidth(wide_str);
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if (width != -1)
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*col += width;
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}
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else
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(*col)++;
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free(ctrl_wide_str);
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/* If we have a normal character, get its width in columns
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* normally. */
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} else
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*col += wcwidth(wide_str);
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} else {
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int width = wcwidth(wide_str);
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if (width != -1)
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*col += width;
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}
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}
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} else {
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#endif
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60
src/winio.c
60
src/winio.c
@ -2119,8 +2119,6 @@ size_t display_string_len(const char *buf, size_t start_col, size_t
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if (bad_wide_buf_len != -1)
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retval += bad_wide_buf_len;
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else
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retval++;
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free(bad_wide_buf);
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} else {
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@ -2242,15 +2240,10 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
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wide_buf = control_rep((unsigned char)wide_buf);
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#ifdef NANO_WIDE
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if (!ISSET(NO_UTF8)) {
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if (!ISSET(NO_UTF8))
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ctrl_wide_buf_len = wctomb(ctrl_wide_buf,
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(wchar_t)wide_buf);
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if (ctrl_wide_buf_len == -1) {
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ctrl_wide_buf_len = 1;
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ctrl_wide_buf[0] = ' ';
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}
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} else {
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else {
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#endif
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ctrl_wide_buf_len = 1;
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ctrl_wide_buf[0] = (unsigned char)wide_buf;
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@ -2263,10 +2256,21 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
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free(ctrl_wide_buf);
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start_col++;
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#ifdef NANO_WIDE
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if (!ISSET(NO_UTF8)) {
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int width = wcwidth((wchar_t)wide_buf);
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if (width != -1)
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start_col += width;
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} else
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#endif
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start_col++;
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start_index += wide_buf_len;
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}
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} else if (wcwidth(wide_buf) > 1) {
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}
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#ifdef NANO_WIDE
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else if (wcwidth((wchar_t)wide_buf) > 1) {
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/* If dollars is TRUE, make room for the "$" at the
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* beginning of the line. Also make sure that we don't try
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* to display only part of a multicolumn character there. */
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@ -2280,6 +2284,7 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
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start_col++;
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start_index += wide_buf_len;
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}
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#endif
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}
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while (index < alloc_len && buf[start_index] != '\0') {
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@ -2321,15 +2326,10 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
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wide_buf = control_rep((unsigned char)wide_buf);
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#ifdef NANO_WIDE
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if (!ISSET(NO_UTF8)) {
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if (!ISSET(NO_UTF8))
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ctrl_wide_buf_len = wctomb(ctrl_wide_buf,
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(wchar_t)wide_buf);
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if (ctrl_wide_buf_len == -1) {
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ctrl_wide_buf_len = 1;
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ctrl_wide_buf[0] = ' ';
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}
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} else {
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else {
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#endif
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ctrl_wide_buf_len = 1;
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ctrl_wide_buf[0] = (unsigned char)wide_buf;
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@ -2342,11 +2342,15 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
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free(ctrl_wide_buf);
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start_col +=
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#ifdef NANO_WIDE
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!ISSET(NO_UTF8) ? wcwidth((wchar_t)wide_buf) :
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if (!ISSET(NO_UTF8)) {
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int width = wcwidth((wchar_t)wide_buf);
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if (width != -1)
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start_col += width;
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} else
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#endif
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1;
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start_col++;
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} else if (wide_buf == ' ') {
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converted[index++] =
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#if !defined(NANO_SMALL) && defined(ENABLE_NANORC)
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@ -2368,11 +2372,6 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
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bad_wide_buf_len = wctomb(bad_wide_buf,
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(wchar_t)wide_buf);
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if (bad_wide_buf_len == -1) {
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bad_wide_buf_len = 1;
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bad_wide_buf[0] = ' ';
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}
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for (i = 0; i < bad_wide_buf_len; i++)
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converted[index++] = bad_wide_buf[i];
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@ -2384,9 +2383,12 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
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#ifdef NANO_WIDE
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}
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if (!ISSET(NO_UTF8))
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start_col += wcwidth((wchar_t)wide_buf);
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else
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if (!ISSET(NO_UTF8)) {
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int width = wcwidth((wchar_t)wide_buf);
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if (width != -1)
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start_col += width;
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} else
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#endif
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start_col++;
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}
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