Reduce regexp usage, now CL-oriented non-regexp code available, core Lisp lisp/ChangeLog addition: 2015-04-01 Aidan Kehoe <kehoea@parhasard.net> When calling #'string-match with a REGEXP without regular expression special characters, call #'search, #'mismatch, #'find, etc. instead, making our code less likely to side-effect other functions' match data and a little faster. * apropos.el (apropos-command): * apropos.el (apropos): Call (position ?\n ...) rather than (string-match "\n" ...) here. * buff-menu.el: * buff-menu.el (buffers-menu-omit-invisible-buffers): Don't fire up the regexp engine just to check if a string starts with a space. * buff-menu.el (select-buffers-tab-buffers-by-mode): Don't fire up the regexp engine just to compare mode basenames. * buff-menu.el (format-buffers-tab-line): * buff-menu.el (build-buffers-tab-internal): Moved to being a label within the following. * buff-menu.el (buffers-tab-items): Use the label. * bytecomp.el (byte-compile-log-1): Don't fire up the regexp engine just to look for a newline. * cus-edit.el (get): Ditto. * cus-edit.el (custom-variable-value-create): Ditto, but for a colon. * descr-text.el (describe-text-sexp): Ditto. * descr-text.el (describe-char-unicode-data): Use #'split-string-by-char given that we're just looking for a semicolon. * descr-text.el (describe-char): Don't fire up the regexp engine just to look for a newline. * disass.el (disassemble-internal): Ditto. * files.el (file-name-sans-extension): Implement this using #'position. * files.el (file-name-extension): Correct this function's docstring, implement it in terms of #'position. * files.el (insert-directory): Don't fire up the regexp engine to split a string by space; don't reverse the list of switches, this is actually a longstand bug as far as I can see. * gnuserv.el (gnuserv-process-filter): Use #'position here, instead of consing inside #'split-string needlessly. * gtk-file-dialog.el (gtk-file-dialog-update-dropdown): Use #'split-string-by-char here, don't fire up #'split-string for directory-sep-char. * gtk-font-menu.el (hack-font-truename): Implement this more cheaply in terms of #'find, #'split-string-by-char, #'equal, rather than #'string-match, #'split-string, #'string-equal. * hyper-apropos.el (hyper-apropos-grok-functions): * hyper-apropos.el (hyper-apropos-grok-variables): Look for a newline using #'position rather than #'string-match in these functions. * info.el (Info-insert-dir): * info.el (Info-insert-file-contents): * info.el (Info-follow-reference): * info.el (Info-extract-menu-node-name): * info.el (Info-menu): Look for fixed strings using #'position or #'search as appropriate in this file. * ldap.el (ldap-decode-string): * ldap.el (ldap-encode-string): #'encode-coding-string, #'decode-coding-string are always available, don't check if they're fboundp. * ldap.el (ldap-decode-address): * ldap.el (ldap-encode-address): Use #'split-string-by-char in these functions. * lisp-mnt.el (lm-creation-date): * lisp-mnt.el (lm-last-modified-date): Don't fire up the regexp engine just to look for spaces in this file. * menubar-items.el (default-menubar): Use (not (mismatch ...)) rather than #'string-match here, for simple regexp. Use (search "beta" ...) rather than (string-match "beta" ...) * menubar-items.el (sort-buffers-menu-alphabetically): * menubar-items.el (sort-buffers-menu-by-mode-then-alphabetically): * menubar-items.el (group-buffers-menu-by-mode-then-alphabetically): Don't fire up the regexp engine to check if a string starts with a space or an asterisk. Use the more fine-grained results of #'compare-strings; compare case-insensitively for the buffer menu. * menubar-items.el (list-all-buffers): * menubar-items.el (tutorials-menu-filter): Use #'equal rather than #'string-equal, which, in this context, has the drawback of not having a bytecode, and no redeeming features. * minibuf.el: * minibuf.el (un-substitute-in-file-name): Use #'count, rather than counting the occurences of $ using the regexp engine. * minibuf.el (read-file-name-internal-1): Don't fire up the regexp engine to search for ?=. * mouse.el (mouse-eval-sexp): Check for newline with #'find. * msw-font-menu.el (mswindows-reset-device-font-menus): Split a string by newline with #'split-string-by-char. * mule/japanese.el: * mule/japanese.el ("Japanese"): Use #'search rather than #'string-match; canoncase before comparing; fix a bug I had introduced where I had been making case insensitive comparisons where the case mattered. * mule/korea-util.el (default-korean-keyboard): Look for ?3 using #'find, not #'string-march. * mule/korea-util.el (quail-hangul-switch-hanja): Search for a fixed string using #'search. * mule/mule-cmds.el (set-locale-for-language-environment): #'position, #'substitute rather than #'string-match, #'replace-in-string. * newcomment.el (comment-make-extra-lines): Use #'search rather than #'string-match for a simple string. * package-get.el (package-get-remote-filename): Use #'position when looking for ?@ * process.el (setenv): * process.el (read-envvar-name): Use #'position when looking for ?=. * replace.el (map-query-replace-regexp): Use #'split-string-by-char instead of using an inline implementation of it. * select.el (select-convert-from-cf-text): * select.el (select-convert-from-cf-unicodetext): Use #'position rather than #'string-match in these functions. * setup-paths.el (paths-emacs-data-root-p): Use #'search when looking for simple string. * sound.el (load-sound-file): Use #'split-string-by-char rather than an inline reimplementation of same. * startup.el (splash-screen-window-body): * startup.el (splash-screen-tty-body): Search for simple strings using #'search. * version.el (emacs-version): Ditto. * x-font-menu.el (hack-font-truename): Implement this more cheaply in terms of #'find, #'split-string-by-char, #'equal, rather than #'string-match, #'split-string, #'string-equal. * x-font-menu.el (x-reset-device-font-menus-core): Use #'split-string-by-char here. * x-init.el (x-initialize-keyboard): Search for a simple string using #'search.

/* Lisp font data structures for X and Xft.

Copyright (C) 2003 Eric Knauel and Matthias Neubauer
Copyright (C) 2005 Eric Knauel
Copyright (C) 2004, 2005 Free Software Foundation, Inc.

Authors:	Eric Knauel <knauel@informatik.uni-tuebingen.de>
		Matthias Neubauer <neubauer@informatik.uni-freiburg.de>
		Stephen J. Turnbull <stephen@xemacs.org>
Created:	27 Oct 2003
Updated:	05 Mar 2005 by Stephen J. Turnbull

This file is part of XEmacs.

XEmacs 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 3 of the License, or (at your
option) any later version.

XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>. */

/* Synched up with: Not in GNU Emacs. */

/* This module provides the Lisp interface to fonts in X11, including Xft,
   but (at least at first) not GTK+ or Qt.

   It should be renamed to fonts-x.h.

   Sealevel code should be in ../lwlib/lwlib-fonts.h or
   ../lwlib/lwlib-colors.h.
*/


#ifndef INCLUDED_font_mgr_h_
#define INCLUDED_font_mgr_h_

#include "../lwlib/lwlib-fonts.h"
#include "../lwlib/lwlib-colors.h"

extern Fixnum debug_xft;

/* Standard for fontconfig.  Use a macro to show we're not guessing. */
#define Qfc_font_name_encoding Qutf_8

#define XE_XLFD_MAKE_LISP_STRING(s) (make_string(s, strlen(s)))

struct fc_pattern
{
  NORMAL_LISP_OBJECT_HEADER header;
  FcPattern *fcpatPtr;
};

typedef struct fc_pattern fc_pattern;

DECLARE_LISP_OBJECT(fc_pattern, struct fc_pattern);
#define XFC_PATTERN(x) XRECORD (x, fc_pattern, struct fc_pattern)
#define wrap_fc_pattern(p) wrap_record (p, fc_pattern)
#define FC_PATTERNP(x) RECORDP (x, fc_pattern)
#define CHECK_FC_PATTERN(x) CHECK_RECORD (x, fc_pattern)
#define CONCHECK_FC_PATTERN(x) CONCHECK_RECORD (x, fc_pattern)
#define XFC_PATTERN_PTR(x) (XFC_PATTERN(x)->fcpatPtr)

#define FONTCONFIG_EXPOSE_CONFIG
#ifdef FONTCONFIG_EXPOSE_CONFIG

struct fc_config
{
  NORMAL_LISP_OBJECT_HEADER header;
  FcConfig *fccfgPtr;
};

typedef struct fc_config fc_config;

DECLARE_LISP_OBJECT(fc_config, struct fc_config);
#define XFC_CONFIG(x) XRECORD (x, fc_config, struct fc_config)
#define wrap_fc_config(p) wrap_record (p, fc_config)
#define FC_CONFIGP(x) RECORDP (x, fc_config)
#define CHECK_FC_CONFIG(x) CHECK_RECORD (x, fc_config)
#define CONCHECK_FC_CONFIG(x) CONCHECK_RECORD (x, fc_config)
#define XFC_CONFIG_PTR(x) (XFC_CONFIG(x)->fccfgPtr)

#endif /* FONTCONFIG_EXPOSE_CONFIG */

#ifdef HAVE_XFT

#ifndef HAVE_FCCONFIGGETRESCANINTERVAL
/* Older fontconfig versions misspell this function name. */
#define FcConfigGetRescanInterval FcConfigGetRescanInverval 
#endif /* */

#ifndef HAVE_FCCONFIGSETRESCANINTERVAL
/* Older fontconfig versions misspell this function name. */
#define FcConfigSetRescanInterval FcConfigSetRescanInverval 
#endif /* */

/*
  The format of a fontname (as returned by fontconfig) is not well-documented,
  But the character repertoire is represented in an ASCII-compatible way.  See
  fccharset.c (FcCharSetUnparse).  So we can use UTF-8 for long names.

  Currently we have a hack where different versions of the unparsed name are
  used in different contexts fairly arbitrarily.  I don't think this is close
  to coherency; even without the charset and lang properties fontconfig names
  are too unwieldy to use.  We need to rethink the approach here.  I think
  probably Lisp_Font_Instance.name should contain the font name as specified
  to Lisp (almost surely much shorter than shortname, even, and most likely
  wildcarded), while Lisp_Font_Instance.truename should contain the longname.
  For now, I'm going to #ifdef the return values defaulting to short. -- sjt
*/

/*                DEBUGGING STUFF                */

/* print message to stderr: one internal-format string argument */
#define DEBUG_XFT0(level,s)		\
  if (debug_xft > level) stderr_out (s)

/* print message to stderr: one formatted argument */
#define DEBUG_XFT1(level,format,x1)		\
  if (debug_xft > level) stderr_out (format, x1)

/* print message to stderr: two formatted arguments */
#define DEBUG_XFT2(level,format,x1,x2)			\
  if (debug_xft > level) stderr_out (format, x1, x2)

/* print message to stderr: three formatted arguments */
#define DEBUG_XFT3(level,format,x1,x2,x3)			\
  if (debug_xft > level) stderr_out (format, x1, x2, x3)

/* print message to stderr: four formatted arguments */
#define DEBUG_XFT4(level,format,x1,x2,x3,x4)			\
  if (debug_xft > level) stderr_out (format, x1, x2, x3, x4)

/* print an Xft pattern to stderr
   LEVEL is the debug level (to compare to debug_xft)
   FORMAT is a newline-terminated printf format with one %s for the pattern
     and must be internal format (eg, pure ASCII)
   PATTERN is an FcPattern *. */
#define PRINT_XFT_PATTERN(level,format,pattern)			\
  do {								\
    DECLARE_EISTRING (eistrpxft_name);				\
    Extbyte *name;						\
    FcPattern* temp = FcPatternDuplicate (pattern);		\
    FcPatternDel (temp, FC_CHARSET);				\
    name = (Extbyte *) FcNameUnparse (temp);			\
    FcPatternDestroy (temp);					\
    eicpy_ext(eistrpxft_name,					\
              name ? name : "FONT WITH NULL NAME",		\
              Qfc_font_name_encoding);				\
    DEBUG_XFT1 (level, format, eidata(eistrpxft_name));		\
    free (name);						\
  } while (0)

/* print a progress message
   LEVEL is the debug level (to compare to debug_xft)
   FONT is the Xft font name in Mule internal encoding (from an eistring).
   LANG is the language being checked for support (must be ASCII). */
#define CHECKING_LANG(level,font,lang)					\
  do {									\
    DEBUG_XFT2 (level, "checking if %s handles %s\n", font, lang);	\
  } while (0)

#else /* HAVE_XFT */

#endif /* HAVE_XFT */

#endif /* INCLUDED_font_mgr_h_ */