/src/misc.c
C | 612 lines | 383 code | 97 blank | 132 comment | 140 complexity | 239396ea477090c1cf1f23c1715d57b7 MD5 | raw file
- /*--------------------------------*-C-*---------------------------------*
- * File: misc.c
- *----------------------------------------------------------------------*
- *
- * All portions of code are copyright by their respective author/s.
- * Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA>
- * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
- * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com>
- * Copyright (c) 2004 Jingmin Zhou <jimmyzhou@users.sourceforge.net>
- *
- * This program 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 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *----------------------------------------------------------------------*/
- #include "../config.h"
- #include "rxvt.h"
- /* EXTPROTO */
- char*
- rxvt_r_basename(const char *str)
- {
- char* base = STRRCHR(str, '/');
- return (char *)(base ? base + 1 : str);
- }
- /*
- * check that the first characters of S1 match S2
- *
- * No Match
- * return: 0
- * Match
- * return: STRLEN (S2)
- */
- /* EXTPROTO */
- int
- rxvt_str_match(const char *s1, const char *s2)
- {
- if( IS_NULL(s1) || IS_NULL(s2))
- return 0;
- else
- {
- int n = STRLEN(s2);
- return ( (STRNCMP(s1, s2, n) == 0) ? n : 0 );
- }
- }
- /* EXTPROTO */
- const char*
- rxvt_str_skip_space(const char *str)
- {
- if (str)
- while (*str && isspace((int) *str))
- str++;
- return str;
- }
- /*
- * remove leading/trailing space and strip-off leading/trailing quotes.
- * in place.
- */
- /* EXTPROTO */
- char*
- rxvt_str_trim(char *str)
- {
- char *r, *s;
- int n;
- if (!str || !*str) /* shortcut */
- return str;
- /* skip leading spaces */
- for (s = str; *s && isspace((int) *s); s++)
- ;
- /* goto end of string */
- for (n = 0, r = s; *r++; n++)
- ;
- r -= 2;
- /* dump return */
- if (n > 0 && *r == '\n')
- n--, r--;
- /* backtrack along trailing spaces */
- for (; n > 0 && isspace((int) *r); r--, n--)
- ;
- /* skip matching leading/trailing quotes */
- if( *s == '"' && *r == '"' && n > 1 )
- {
- s++;
- n -= 2;
- }
- /* copy back over: forwards copy */
- for (r = str; n; n--)
- *r++ = *s++;
- *r = '\0';
- return str;
- }
- /*
- * in-place interpretation of string:
- *
- * backslash-escaped: "\a\b\E\e\n\r\t", "\octal"
- * Ctrl chars: ^@ .. ^_, ^?
- *
- * returns the converted string length
- */
- /* EXTPROTO */
- int
- rxvt_str_escaped(char *str)
- {
- char ch, *s, *d;
- int i, num;
- if (IS_NULL(str) || *str == '\0') return 0;
- d = s = str;
- /*
- * 2006-03-23 gi1242: Disabled, as the user has no 'easy' way to send
- * strings beginning with M-x to mrxvt.
- *
- * 2006-05-24 gi1242: With macros, the user has an 'easy' way to send
- * strings to mrxvt. However emacs users should use emacs macros do do such
- * things, and not require code bloat in mrxvt for these random features.
- * Besides, mrxvt users should use Vim anyway ... :)
- */
- #if 0
- if (*s == 'M' && s[1] == '-')
- {
- /* Emacs convenience, replace leading `M-..' with `\E..' */
- *d++ = C0_ESC;
- s += 2;
- if (toupper((int) *s) == 'X')
- /* append carriage-return for `M-xcommand' */
- for (*d++ = 'x', append = '\r', s++;
- isspace((int) *s);
- s++)
- ;
- }
- #endif
- for (; (ch = *s++);)
- {
- if (ch == '\\')
- {
- ch = *s++;
- if (ch >= '0' && ch <= '7') /* octal */
- {
- num = ch - '0';
- for (i = 0; i < 2; i++, s++)
- {
- ch = *s;
- if (ch < '0' || ch > '7')
- break;
- num = num * 8 + ch - '0';
- }
- ch = (char)num;
- }
- else if (ch == 'a')
- ch = C0_BEL; /* bell */
- else if (ch == 'b')
- ch = C0_BS; /* backspace */
- else if (ch == 'E' || ch == 'e')
- ch = C0_ESC; /* escape */
- else if (ch == 'n')
- ch = '\n'; /* newline */
- else if (ch == 'r')
- ch = '\r'; /* carriage-return */
- else if (ch == 't')
- ch = C0_HT; /* tab */
- else if (ch != '\\' && ch != '^' )
- *d++ = '\\'; /* Copy over backslash */
- }
- else if (ch == '^')
- {
- ch = *s++;
- if( ch == '?' )
- ch = 127;
- else if( toupper(ch) >= 'A' && toupper(ch) <= 'Z' )
- ch = toupper(ch) - '@';
- else
- *d++ = '^'; /* Copy over caret */
- }
- *d++ = ch;
- }
- #if 0 /* Users can terminate their own stinking strings */
- /* ESC] is an XTerm escape sequence, must be terminated */
- if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
- append = CHAR_ST;
- /* add trailing character as required */
- if (append && d[-1] != append)
- *d++ = append;
- #endif
- *d = '\0';
- return (d - str);
- }
- /*
- * % interpolate expand src, and copy into dst. Returns length of the
- * interpolated string.
- */
- /* EXTPROTO */
- int
- rxvt_percent_interpolate( rxvt_t *r, int page,
- const char *src, int len, char *dst, int maxLen )
- {
- int i=0, /* Unexpanded string index */
- j=0; /* Expanded string index */
- rxvt_dbgmsg ((DBG_DEBUG, DBG_MISC, "rxvt_percent_interpolate( r, %d, %s, %d, %s, %d )\n", page, src, len, "dst", maxLen));
- /* Must only get here for a valid tab */
- assert( page >=0 && page <= LTAB(r) );
- assert( NOT_NULL( PVTS( r, page ) ) && PVTS( r, page )->vts_idx != -1 );
- while( i < len-1 && j < maxLen-1 )
- {
- if( src[i] == '%' )
- {
- switch( src[++i] )
- {
- case '%':
- /* Copy % over */
- dst[j++] = src[i++];
- break;
- case 'n':
- /* Active tab number */
- j += snprintf( dst + j, maxLen - j, "%d", page+1 );
- i ++;
- break;
- case 't':
- /* Active tab title */
- j += snprintf( dst + j, maxLen -j,
- "%s", PVTS(r, page)->tab_title );
- i ++;
- break;
- case 'S':
- /* Exit status of dead processes */
- if( PVTS( r, page )->dead )
- j += snprintf( dst + j, maxLen - j, "%d",
- WEXITSTATUS( PVTS( r, page )->status ) );
- else
- dst[ j++ ] = src[ i ];
- i++;
- break;
- case 'N':
- /* Normal / abnormal exit status of dead processes */
- if( PVTS( r, page )->dead )
- j += snprintf( dst + j, maxLen - j, "%s",
- WIFEXITED( PVTS( r, page )->status )
- ? "normally" : "abnormally" );
- else
- dst[ j++ ] = src[ i ];
- i ++;
- break;
- case 's':
- /*
- * Selection. TODO Also paste selection if it is not
- * owned by mrxvt.
- */
- if( NOT_NULL( r->selection.text ) )
- j += snprintf( dst + j, maxLen -j,
- "%s", r->selection.text );
- i++;
- break;
- case 'p':
- /* Pid of process in current tab */
- j += snprintf( dst + j, maxLen - j, "%d",
- PVTS(r, page)->cmd_pid );
- i++;
- break;
- case 'P':
- /* PID of mrxvt */
- j += snprintf( dst + j, maxLen - j, "%d", getpid() );
- i++;
- break;
- case 'G':
- /* Global tab number (plus 1) */
- j += snprintf( dst + j, maxLen - j, "%d",
- PVTS( r, page )->globalTabNum + 1 );
- i ++;
- break;
- case 'T':
- /* # tabs created so far */
- j += snprintf( dst + j, maxLen - j, "%d",
- r->ntabs + 1 );
- i ++;
- break;
- default:
- rxvt_msg (DBG_ERROR, DBG_MISC, "Unrecognized flag %%%c in '%s'", src[i++], src );
- break;
- }
- }
- else
- dst[j++] = src[i++];
- }
- /* Copy last char over */
- if( i == len-1 && j < maxLen-1 )
- dst[j++] = src[i++];
- /* NULL terminate dst */
- if( j > maxLen - 1 )
- j = maxLen - 1;
- if( j == 0 || dst[j-1] )
- dst[j++] = 0;
- /* % expansion done. Copy the string and length over */
- return j;
- }
- /*
- * Split a comma-separated string into an array, stripping leading and
- * trailing spaces (and paired quotes) from each entry. Empty strings
- * are properly returned
- * Caller should free each entry and array when done
- */
- /* EXTPROTO */
- char**
- rxvt_splitcommastring(const char *cs)
- {
- int l, n, p;
- const char *s, *t;
- char **ret;
- if( IS_NULL(s = cs))
- s = "";
- for( n=1, t=s; *t; t++)
- if (*t == ',')
- n++;
- assert (n >= 0 && n+1 > 0); /* possible integer overflow? */
- ret = rxvt_malloc( (n + 1) * sizeof(char *) );
- ret[n] = NULL;
- for( l = 0, t = s; l < n; l++ )
- {
- for( ; *t && *t != ','; t++ );
- p = t - s;
- ret[l] = rxvt_malloc(p + 1);
- STRNCPY(ret[l], s, p);
- ret[l][p] = '\0';
- rxvt_str_trim(ret[l]);
- s = ++t;
- }
- return ret;
- }
- /*----------------------------------------------------------------------*
- * file searching
- */
- #if defined (BACKGROUND_IMAGE) || defined (HAVE_MENUBAR)
- /*
- * search for FILE in the current working directory, and within the
- * colon-delimited PATHLIST, adding the file extension EXT if required.
- *
- * FILE is either semi-colon or zero terminated
- */
- /* INTPROTO */
- char *
- rxvt_File_search_path(const char *pathlist, const char *file, const char *ext)
- {
- int maxpath, len;
- const char *p, *path;
- char name[256];
- if (!access(file, R_OK)) /* found (plain name) in current directory */
- return STRDUP(file);
- /* semi-colon delimited */
- if ((p = STRCHR(file, ';'))) len = (p - file);
- else len = STRLEN(file);
- #ifdef DEBUG
- getcwd(name, sizeof(name));
- rxvt_dbgmsg ((DBG_VERBOSE, DBG_MISC, "pwd: \"%s\"\n", name));
- rxvt_dbgmsg ((DBG_VERBOSE, DBG_MISC, "find: \"%.*s\"\n", len, file));
- #endif
- /* leave room for an extra '/' and trailing '\0' */
- maxpath = sizeof(name) - (len + (ext ? STRLEN(ext) : 0) + 2);
- if (maxpath <= 0)
- return NULL;
- /* check if we can find it now */
- STRNCPY(name, file, len);
- name[len] = '\0';
- if (!access(name, R_OK))
- return STRDUP(name);
- if (ext)
- {
- STRCAT(name, ext);
- if (!access(name, R_OK))
- return STRDUP(name);
- }
- for (path = pathlist; NOT_NULL(path) && *path != '\0'; path = p)
- {
- int n;
- /* colon delimited */
- if (IS_NULL(p = STRCHR(path, ':')))
- p = STRCHR(path, '\0');
- n = (p - path);
- if (*p != '\0') p++;
- if (n > 0 && n <= maxpath)
- {
- STRNCPY(name, path, n);
- if (name[n - 1] != '/') name[n++] = '/';
- name[n] = '\0';
- STRNCAT(name, file, len);
- if (!access(name, R_OK))
- return STRDUP(name);
- if (ext)
- {
- STRCAT(name, ext);
- if (!access(name, R_OK))
- return STRDUP(name);
- }
- }
- }
- return NULL;
- }
- /* EXTPROTO */
- char *
- rxvt_File_find(const char *file, const char *ext, const char *path)
- {
- char *f;
- if (IS_NULL(file) || *file == '\0')
- return NULL;
- do
- {
- char *envpath;
- if ((f = rxvt_File_search_path(path, file, ext))) break;
- /*
- * Failed to get the file from arg path. Try getting it from the env
- * variable PATH_ENV.
- */
- rxvt_dbgmsg ((DBG_DEBUG, DBG_MISC, "Searching for %s from env %s...\n", file, PATH_ENV));
- envpath = getenv( PATH_ENV);
- if( envpath)
- if(( f = rxvt_File_search_path( envpath, file, ext) )) break;
- /*
- * Check in ~/.mrxvt
- */
- rxvt_dbgmsg ((DBG_DEBUG, DBG_MISC, "Searching for %s in ~/.mrxvt\n", file));
- envpath = getenv("HOME");
- if( envpath )
- {
- char *homepath;
- homepath = rxvt_malloc( STRLEN(envpath) + STRLEN(PACKAGE_NAME) + 3);
- sprintf( homepath, "%s/.%s", envpath, PACKAGE_NAME);
- f = rxvt_File_search_path( homepath, file, ext);
- rxvt_free( homepath);
- }
- if( f ) break;
- /*
- * Last resort: Try a compiled in default.
- */
- rxvt_dbgmsg ((DBG_DEBUG, DBG_MISC, "Searching for %s in %s\n", file, PKG_CONF_DIR));
- f = rxvt_File_search_path( PKG_CONF_DIR, file, ext);
- }
- while(0);
- rxvt_dbgmsg ((DBG_DEBUG, DBG_MISC, "Got file %s\n", f ? f : "(nil)"));
- return f;
- }
- #endif /* defined (BACKGROUND_IMAGE) || (HAVE_MENUBAR) */
- /*----------------------------------------------------------------------*
- * miscellaneous drawing routines
- */
- # define CHOOSE_GC_FG(DISP, MYGC, PIXCOL) \
- XSetForeground ((DISP), (MYGC), (PIXCOL))
- /*
- * Draw top/left and bottom/right border shadows around windows
- */
- #if defined(RXVT_SCROLLBAR) || defined(HAVE_MENUBAR)
- /* EXTPROTO */
- void
- rxvt_draw_shadow (Display *Xdisplay, Window win, GC gc, unsigned long topShadow, unsigned long botShadow, int x, int y, int w, int h)
- {
- int shadow;
- shadow = (w == 0 || h == 0) ? 1 : SHADOW;
- w += x - 1;
- h += y - 1;
- for (; shadow-- > 0; x++, y++, w--, h--)
- {
- CHOOSE_GC_FG(Xdisplay, gc, topShadow);
- XDrawLine(Xdisplay, win, gc, x, y, w, y);
- XDrawLine(Xdisplay, win, gc, x, y, x, h);
- CHOOSE_GC_FG(Xdisplay, gc, botShadow);
- XDrawLine(Xdisplay, win, gc, w, h, w, y + 1);
- XDrawLine(Xdisplay, win, gc, w, h, x + 1, h);
- }
- }
- #endif
- /* button shapes */
- #ifdef HAVE_MENUBAR
- /* EXTPROTO */
- void
- rxvt_draw_triangle( Display *Xdisplay, Window win, GC gc,
- unsigned long topShadow, unsigned long botShadow,
- int x, int y, int w, int type)
- {
- switch (type)
- {
- case 'r': /* right triangle */
- CHOOSE_GC_FG(Xdisplay, gc, topShadow);
- XDrawLine(Xdisplay, win, gc, x, y, x, y + w);
- XDrawLine(Xdisplay, win, gc, x, y, x + w, y + w / 2);
- CHOOSE_GC_FG(Xdisplay, gc, botShadow);
- XDrawLine(Xdisplay, win, gc, x, y + w, x + w, y + w / 2);
- break;
- case 'l': /* left triangle */
- CHOOSE_GC_FG(Xdisplay, gc, botShadow);
- XDrawLine(Xdisplay, win, gc, x + w, y + w, x + w, y);
- XDrawLine(Xdisplay, win, gc, x + w, y + w, x, y + w / 2);
- CHOOSE_GC_FG(Xdisplay, gc, topShadow);
- XDrawLine(Xdisplay, win, gc, x, y + w / 2, x + w, y);
- break;
- case 'd': /* down triangle */
- CHOOSE_GC_FG(Xdisplay, gc, topShadow);
- XDrawLine(Xdisplay, win, gc, x, y, x + w / 2, y + w);
- XDrawLine(Xdisplay, win, gc, x, y, x + w, y);
- CHOOSE_GC_FG(Xdisplay, gc, botShadow);
- XDrawLine(Xdisplay, win, gc, x + w, y, x + w / 2, y + w);
- break;
- case 'u': /* up triangle */
- CHOOSE_GC_FG(Xdisplay, gc, botShadow);
- XDrawLine(Xdisplay, win, gc, x + w, y + w, x + w / 2, y);
- XDrawLine(Xdisplay, win, gc, x + w, y + w, x, y + w);
- CHOOSE_GC_FG(Xdisplay, gc, topShadow);
- XDrawLine(Xdisplay, win, gc, x, y + w, x + w / 2, y);
- break;
- }
- }
- #endif
- /*----------------------- end-of-file (C source) -----------------------*/