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/*--------------------------------*-C-*---------------------------------* |
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* File: misc.c |
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*----------------------------------------------------------------------* |
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* |
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* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston |
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* Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> |
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* Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com> |
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* Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> |
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* |
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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 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*----------------------------------------------------------------------*/ |
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|
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#include "../config.h" /* NECESSARY */ |
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#include "rxvt.h" /* NECESSARY */ |
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#include "misc.intpro" /* PROTOS for internal routines */ |
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|
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/* EXTPROTO */ |
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char * |
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rxvt_strdup (const char *str) |
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{ |
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return str ? strdup (str) : 0; |
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} |
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|
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/* EXTPROTO */ |
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char * |
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rxvt_r_basename (const char *str) |
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{ |
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char *base = STRRCHR (str, '/'); |
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|
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return (char *) (base ? base + 1 : str); |
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} |
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|
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/* |
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* Print an error message |
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*/ |
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/* EXTPROTO */ |
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void |
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rxvt_print_error (const char *fmt,...) |
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{ |
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va_list arg_ptr; |
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|
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va_start (arg_ptr, fmt); |
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fprintf (stderr, APL_NAME ": "); |
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vfprintf (stderr, fmt, arg_ptr); |
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fprintf (stderr, "\n"); |
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va_end (arg_ptr); |
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} |
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|
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/* |
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* check that the first characters of S1 match S2 |
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* |
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* No Match |
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* return: 0 |
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* Match |
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* return: STRLEN (S2) |
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*/ |
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/* EXTPROTO */ |
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int |
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rxvt_Str_match (const char *s1, const char *s2) |
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{ |
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int n = STRLEN (s2); |
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|
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return ((STRNCMP (s1, s2, n) == 0) ? n : 0); |
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} |
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|
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/* EXTPROTO */ |
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const char * |
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rxvt_Str_skip_space (const char *str) |
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{ |
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if (str) |
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while (*str && isspace (*str)) |
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str++; |
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|
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return str; |
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} |
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|
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/* |
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* remove leading/trailing space and strip-off leading/trailing quotes. |
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* in place. |
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*/ |
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/* EXTPROTO */ |
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char * |
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rxvt_Str_trim (char *str) |
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{ |
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char *r, *s; |
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int n; |
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|
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if (!str || !*str) /* shortcut */ |
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return str; |
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|
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/* skip leading spaces */ |
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for (s = str; *s && isspace (*s); s++) ; |
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/* goto end of string */ |
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for (n = 0, r = s; *r++; n++) ; |
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r -= 2; |
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/* dump return */ |
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if (n > 0 && *r == '\n') |
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n--, r--; |
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/* backtrack along trailing spaces */ |
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for (; n > 0 && isspace (*r); r--, n--) ; |
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/* skip matching leading/trailing quotes */ |
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if (*s == '"' && *r == '"' && n > 1) |
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{ |
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s++; |
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n -= 2; |
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} |
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|
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/* copy back over: forwards copy */ |
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for (r = str; n; n--) |
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*r++ = *s++; |
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*r = '\0'; |
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|
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return str; |
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} |
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|
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/* |
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* in-place interpretation of string: |
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* |
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* backslash-escaped: "\a\b\E\e\n\r\t", "\octal" |
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* Ctrl chars: ^@ .. ^_, ^? |
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* |
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* Emacs-style: "M-" prefix |
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* |
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* Also, |
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* "M-x" prefixed strings, append "\r" if needed |
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* "\E]" prefixed strings (XTerm escape sequence) append ST if needed |
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* |
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* returns the converted string length |
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*/ |
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/* EXTPROTO */ |
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int |
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rxvt_Str_escaped (char *str) |
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{ |
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char ch, *s, *d; |
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int i, num, append = 0; |
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|
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if (!str || !*str) |
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return 0; |
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|
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d = s = str; |
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|
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if (*s == 'M' && s[1] == '-') |
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{ |
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/* Emacs convenience, replace leading `M-..' with `\E..' */ |
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*d++ = C0_ESC; |
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s += 2; |
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if (toupper (*s) == 'X') |
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/* append carriage-return for `M-xcommand' */ |
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for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ; |
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} |
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for (; (ch = *s++);) |
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{ |
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if (ch == '\\') |
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{ |
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ch = *s++; |
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if (ch >= '0' && ch <= '7') |
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{ /* octal */ |
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num = ch - '0'; |
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for (i = 0; i < 2; i++, s++) |
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{ |
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ch = *s; |
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if (ch < '0' || ch > '7') |
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break; |
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num = num * 8 + ch - '0'; |
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} |
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ch = (char)num; |
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} |
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else if (ch == 'a') |
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ch = C0_BEL; /* bell */ |
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else if (ch == 'b') |
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ch = C0_BS; /* backspace */ |
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else if (ch == 'E' || ch == 'e') |
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ch = C0_ESC; /* escape */ |
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else if (ch == 'n') |
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ch = '\n'; /* newline */ |
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else if (ch == 'r') |
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ch = '\r'; /* carriage-return */ |
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else if (ch == 't') |
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ch = C0_HT; /* tab */ |
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} |
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else if (ch == '^') |
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{ |
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ch = *s++; |
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ch = toupper (ch); |
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ch = (ch == '?' ? 127 : (ch - '@')); |
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} |
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*d++ = ch; |
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} |
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|
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/* ESC] is an XTerm escape sequence, must be terminated */ |
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if (*str == '\0' && str[1] == C0_ESC && str[2] == ']') |
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append = CHAR_ST; |
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|
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/* add trailing character as required */ |
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if (append && d[-1] != append) |
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*d++ = append; |
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*d = '\0'; |
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|
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return (d - str); |
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} |
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|
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/* |
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* Split a comma-separated string into an array, stripping leading and |
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* trailing spaces (and paired quotes) from each entry. Empty strings |
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* are properly returned |
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* Caller should free each entry and array when done |
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*/ |
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/* EXTPROTO */ |
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char ** |
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rxvt_splitcommastring (const char *cs) |
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{ |
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int l, n, p; |
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const char *s, *t; |
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char **ret; |
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|
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if ((s = cs) == NULL) |
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s = ""; |
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|
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for (n = 1, t = s; *t; t++) |
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if (*t == ',') |
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n++; |
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ret = (char **)malloc ((n + 1) * sizeof (char *)); |
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ret[n] = NULL; |
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|
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for (l = 0, t = s; l < n; l++) |
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{ |
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for ( ; *t && *t != ','; t++) ; |
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p = t - s; |
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ret[l] = (char *)malloc (p + 1); |
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strncpy (ret[l], s, p); |
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ret[l][p] = '\0'; |
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rxvt_Str_trim (ret[l]); |
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s = ++t; |
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} |
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return ret; |
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} |
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|
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/*----------------------------------------------------------------------* |
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* file searching |
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*/ |
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|
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/* #define DEBUG_SEARCH_PATH */ |
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|
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#if defined (XPM_BACKGROUND) || (MENUBAR_MAX) |
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/* |
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* search for FILE in the current working directory, and within the |
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* colon-delimited PATHLIST, adding the file extension EXT if required. |
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* |
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* FILE is either semi-colon or zero terminated |
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*/ |
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/* INTPROTO */ |
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char * |
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rxvt_File_search_path (const char *pathlist, const char *file, const char *ext) |
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{ |
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int maxpath, len; |
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const char *p, *path; |
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char name[256]; |
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|
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if (!access (file, R_OK)) /* found (plain name) in current directory */ |
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return STRDUP (file); |
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|
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/* semi-colon delimited */ |
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if ((p = STRCHR (file, ';'))) |
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len = (p - file); |
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else |
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len = STRLEN (file); |
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|
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#ifdef DEBUG_SEARCH_PATH |
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getcwd (name, sizeof (name)); |
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fprintf (stderr, "pwd: \"%s\"\n", name); |
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fprintf (stderr, "find: \"%.*s\"\n", len, file); |
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#endif |
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|
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/* leave room for an extra '/' and trailing '\0' */ |
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maxpath = sizeof (name) - (len + (ext ? STRLEN (ext) : 0) + 2); |
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if (maxpath <= 0) |
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return NULL; |
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|
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/* check if we can find it now */ |
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STRNCPY (name, file, len); |
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name[len] = '\0'; |
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|
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if (!access (name, R_OK)) |
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return STRDUP (name); |
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if (ext) |
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{ |
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STRCAT (name, ext); |
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if (!access (name, R_OK)) |
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return STRDUP (name); |
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} |
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for (path = pathlist; path != NULL && *path != '\0'; path = p) |
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{ |
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int n; |
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|
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/* colon delimited */ |
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if ((p = STRCHR (path, ':')) == NULL) |
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p = STRCHR (path, '\0'); |
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|
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n = (p - path); |
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if (*p != '\0') |
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p++; |
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|
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if (n > 0 && n <= maxpath) |
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{ |
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STRNCPY (name, path, n); |
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if (name[n - 1] != '/') |
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name[n++] = '/'; |
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name[n] = '\0'; |
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STRNCAT (name, file, len); |
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|
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if (!access (name, R_OK)) |
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return STRDUP (name); |
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if (ext) |
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{ |
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STRCAT (name, ext); |
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if (!access (name, R_OK)) |
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return STRDUP (name); |
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} |
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} |
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} |
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return NULL; |
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} |
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|
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/* EXTPROTO */ |
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char * |
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rxvt_File_find (const char *file, const char *ext, const char *path) |
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{ |
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char *f; |
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|
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if (file == NULL || *file == '\0') |
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return NULL; |
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|
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/* search environment variables here too */ |
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if ((f = rxvt_File_search_path (path, file, ext)) == NULL) |
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#ifdef PATH_ENV |
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if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL) |
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#endif |
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f = rxvt_File_search_path (getenv ("PATH"), file, ext); |
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|
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#ifdef DEBUG_SEARCH_PATH |
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if (f) |
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fprintf (stderr, "found: \"%s\"\n", f); |
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#endif |
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|
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return f; |
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} |
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#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */ |
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|
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/*----------------------------------------------------------------------* |
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* miscellaneous drawing routines |
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*/ |
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|
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/* |
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* Draw top/left and bottom/right border shadows around windows |
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*/ |
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#if defined(RXVT_SCROLLBAR) || defined(MENUBAR) |
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/* EXTPROTO */ |
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void |
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rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) |
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{ |
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int shadow; |
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|
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shadow = (w == 0 || h == 0) ? 1 : SHADOW; |
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w += x - 1; |
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h += y - 1; |
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for (; shadow-- > 0; x++, y++, w--, h--) |
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{ |
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XDrawLine (display, win, topShadow, x, y, w, y); |
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XDrawLine (display, win, topShadow, x, y, x, h); |
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XDrawLine (display, win, botShadow, w, h, w, y + 1); |
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XDrawLine (display, win, botShadow, w, h, x + 1, h); |
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} |
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} |
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#endif |
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|
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/* button shapes */ |
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#ifdef MENUBAR |
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/* EXTPROTO */ |
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void |
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rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) |
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{ |
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switch (type) |
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{ |
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case 'r': /* right triangle */ |
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XDrawLine (display, win, topShadow, x, y, x, y + w); |
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XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2); |
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XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2); |
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break; |
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|
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case 'l': /* left triangle */ |
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XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
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XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2); |
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XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y); |
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break; |
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|
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case 'd': /* down triangle */ |
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XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w); |
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XDrawLine (display, win, topShadow, x, y, x + w, y); |
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XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w); |
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break; |
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|
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case 'u': /* up triangle */ |
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XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y); |
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XDrawLine (display, win, botShadow, x + w, y + w, x, y + w); |
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XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y); |
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break; |
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#if 0 |
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case 's': /* square */ |
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XDrawLine (display, win, topShadow, x + w, y, x, y); |
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XDrawLine (display, win, topShadow, x, y, x, y + w); |
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XDrawLine (display, win, botShadow, x, y + w, x + w, y + w); |
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XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
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break; |
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#endif |
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|
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} |
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} |
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#endif |
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/*----------------------- end-of-file (C source) -----------------------*/ |
