Update to the html-export code. HTML is not yet support in custom export, so

somebody interested in this will have to do it. Read ChangeLog for a few other changes.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@274 a592a061-630c-0410-9148-cb99ea01b6c8

ChangeLog

@@ -1,3 +1,30 @@
+1999-11-02  Jean-Marc Lasgouttes  <Jean-Marc.Lasgouttes@inria.fr>
+
+	* src/support/lyxstring.C (find): remove bogus assertion in the
+	two versions of find where this has not been done yet.
+
+	* src/support/lyxlib.h: add missing int return type to
+	lyx::chdir(). 
+
+	* src/menus.C (ShowFileMenu): disable exporting to html if no
+	html export command is present.
+
+	* config/lib_configure.m4: add a test for an HTML converter. The
+	programs checked for are, in this order: tth, latex2html and
+	hevea. 
+
+	* lib/configure: generated from config/lib_configure.m4.
+
+	* src/lyxfunc.C (Dispatch): update and improve the execution of an
+	html converter. The parameters are now passed through $$FName and
+	$$OutName, instead of standard input/output.
+
+	* src/lyxrc.{C,h}: rename \tth_command to \html_command.
+
+	* lib/lyxrc.example: update description of \html_command. 
+	add "quotes" around \screen_font_xxx font setting examples to help
+	people who use fonts with spaces in their names.
+
 1999-11-02  Lars Gullik Bjønnes  <larsbj@lyx.org>
 
 	* Distribution files: updates for v1.1.2

NEWS

@@ -1,12 +1,17 @@
 What's new in LyX version 1.1.2?
 --------------------------------
 
-LyX 1.1.2 is a minor upgrade to 1.1.1, only a couple of semi-serious
-bugs have been fixed:
+LyX 1.1.2 is a minor upgrade to 1.1.1, only one new feature has been added:
 
-	- a bug that casued a crash in lyxstring::find
+- the export to html feature has been extended to use other programs.
+  Currently, tth, latex2html and hevea are supported. Note that the
+  variable \tth_command has been renamed to \html_command in lyxrc.
 
-	- the annoying '-' vs. '_' bug.
+Moreover, a couple of semi-serious bugs have been fixed:
+
+- a bug that caused a crash in lyxstring::find
+
+- the annoying '-' vs. '_' bug.
 
 Also the cheaders files was missing from the 1.1.1 distribution, that
 has also been fixed.

config/lib_configure.m4

@@ -244,6 +244,14 @@ case $LPR in
    *) :;; # leave to empty values
 esac
 
+# Search for a latex to html converter
+SEARCH_PROG([for an HTML converter], TOHTML, tth latex2html hevea)
+case $TOHTML in
+	tth) html_command="tth -t '\$\$Fname'";;
+ latex2html) html_command="latex2html -no_subdir -split 0 -show_section_numbers '\$\$FName'";;
+      hevea) html_command="hevea -s '\$\$FName'";;
+esac
+
 #### Explore the LaTeX configuration
 MSG_CHECKING(LaTeX configuration)
 # First, remove the files that we want to re-create
@@ -326,6 +334,7 @@ cat >lyxrc.defaults <<EOF
 \\chktex_command "$chktex_command"
 \\spell_command "$SPELL"
 \\fax_command "$fax_command"
+\\html_command "$html_command"
 \\print_spool_command "$print_spool_command"
 \\print_spool_printerprefix "$print_spool_printerprefix"
 \\font_encoding "$chk_fontenc"

lib/configure

@@ -562,6 +562,47 @@ case $LPR in
    *) :;; # leave to empty values
 esac
 
+# Search for a latex to html converter
+echo $ac_n "checking for an HTML converter""... $ac_c"
+echo "$ac_t"""
+TOHTML=
+for ac_prog in tth latex2html hevea
+do
+# Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog ; ac_word=$2
+if test -n "$ac_word"; then
+  echo $ac_n "+checking for \"$ac_word\"""... $ac_c"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -x $ac_dir/$ac_word; then
+      TOHTML="$ac_prog"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+
+  if test -n "$TOHTML"; then
+    ac_result=yes
+  else
+    ac_result=no
+  fi
+  
+  echo "$ac_t""$ac_result"
+  test -n "$TOHTML" && break
+fi
+done
+
+if test -z "$TOHTML" ; then
+  TOHTML=none
+fi
+
+case $TOHTML in
+	tth) html_command='tth -t $$FNname';;
+ latex2html) html_command='latex2html -no_subdir -split 0  -show_section_numbers $$FName';;
+      hevea) html_command='hevea -s $$FName -o $$OutName';;
+esac
+
 #### Explore the LaTeX configuration
 echo $ac_n "checking LaTeX configuration""... $ac_c"
 # First, remove the files that we want to re-create
@@ -656,6 +697,7 @@ cat >lyxrc.defaults <<EOF
 \\chktex_command "$chktex_command"
 \\spell_command "$SPELL"
 \\fax_command "$fax_command"
+\\html_command "$html_command"
 \\print_spool_command "$print_spool_command"
 \\print_spool_printerprefix "$print_spool_printerprefix"
 \\font_encoding "$chk_fontenc"

lib/lyxrc.example

@@ -119,10 +119,17 @@
 # Example: use this to ignore warnings about using "\ldots" instead of "..."
 #\chktex_command "chktex -n11 -n1 -n3 -n6 -n9 -22 -n25 -n30 -n38"
 
-# Define which program to use to run "tth", the LaTeX to HTML converter
-# You should include options. The default is "tth -t"
-# Example: use this to let math be italic
-#\tth_command "tth -t -i"
+# Define which program to use to translate latex to HTML.
+# You should include options. The default is autodetected: the programs 
+# checked are tth, latex2html and hevea, and the default command lines
+# used are:  
+#\html_command "tth -t '$$Fname'"
+#\html_command "latex2html -no_subdir -split 0 -show_section_numbers '$$FName'"
+#\html_command "hevea -s '$$FName'"
+# The variable name $$FName is replaced with the name of the .tex
+# file, and $$OutName is replaced with the name of the html file.
+# Example: use this to let math be italic with tth.
+#\html_command "tth -t -i $$FName"
 
 # If you want to pass extra flags to the LinuxDoc sgml scripts, insert them
 # here. 
@@ -206,12 +213,12 @@
 
 # The screen fonts used to display the text while editing
 # The defaults are:
-#\screen_font_roman -*-times
-#\screen_font_sans -*-helvetica
-#\screen_font_typewriter -*-courier
+#\screen_font_roman "-*-times"
+#\screen_font_sans "-*-helvetica"
+#\screen_font_typewriter "-*-courier"
 
 # For some, this font looks better:
-#\screen_font_roman -*-utopia
+#\screen_font_roman "-*-utopia"
 
 # Allow the use of scalable screen fonts? Default is true.
 # If you choose "false", LyX will use the closest existing size for a match.
@@ -227,12 +234,12 @@
 # The font for popups. It is set to 
 #    <font_popup>-*-*-*-?-*-*-*-*-<font_encoding>.
 # The default  is:
-#\screen_font_popup -*-helvetica-medium-r
+#\screen_font_popup "-*-helvetica-medium-r"
 
 # The font for menus (and groups titles in popups). It is set to 
 #    <font_menu>-*-*-*-?-*-*-*-*-<font_encoding>.
 # The default  is:
-#\screen_font_menu -*-helvetica-bold-r
+#\screen_font_menu "-*-helvetica-bold-r"
 
 # The font sizes used for calculating the scaling of the screen fonts.
 # You should only have to change these if the fonts on your screen look bad,

src/lyxfunc.C

@@ -60,6 +60,7 @@
 #include "ImportNoweb.h"
 #include "support/syscall.h"
 #include "support/lstrings.h"
+#include "support/path.h"
 
 extern bool cursor_follows_scrollbar;
 
@@ -706,28 +707,34 @@ string LyXFunc::Dispatch(int ac,
 			break;
 		}
 		// HTML
-		else if (extyp == "html") {
+		else if (extyp == "html" && lyxrc->html_command != "none") {
 			// First, create LaTeX file
 			MenuMakeLaTeX(owner->currentBuffer());
 
-			// And now, run tth
+			// And now, run the converter
 			string file = owner->currentBuffer()->getFileName();
-			file = ChangeExtension(file, ".tex", false);
+			Path path(OnlyPath(file));
+			// the tex file name has to be correct for
+			// latex, but the html file name can be
+			// anything.
 			string result = ChangeExtension(file, ".html", false);
-			string tmp = lyxrc->tth_command + " < " + file 
-			    + " > " + result ;
+			file = ChangeExtension(SpaceLess(file), ".tex", false);
+			string tmp = lyxrc->html_command;
+			tmp = subst(tmp, "$$FName", file);
+			tmp = subst(tmp, "$$OutName", result);
 			Systemcalls one;
 			int res = one.startscript(Systemcalls::System, tmp);
 			if (res == 0) {
-				setMessage(string(
-				  _("Document exported as HTML to file: ")) + result);
+				setMessage(_("Document exported as HTML to file `")
+					   + MakeDisplayPath(result) +'\'');
 			} else {
-				setErrorMessage(string(
-				  _("An unexpected error occured while converting document to HTML in file:")) + result);
+				setErrorMessage(_("Unable to convert to HTML the file `")
+						+ MakeDisplayPath(file) 
+						+ '\'');
 			}
 		}
 		else {
-			setErrorMessage(string(_("Unknown export type: "))
+			setErrorMessage(_("Unknown export type: ")
 					+ extyp);
 		}
 	}

src/lyxrc.C

@@ -120,7 +120,7 @@ enum _LyXRCTags {
 	RC_EXIT_CONFIRMATION,
 	RC_DISPLAY_SHORTCUTS,
 	RC_RELYX_COMMAND,
-	RC_TTH_COMMAND,
+	RC_HTML_COMMAND,
 	RC_LAST	
 };
 
@@ -151,6 +151,7 @@ static keyword_item lyxrcTags[] = {
 	{ "\\fax_command", RC_FAX_COMMAND },
 	{ "\\fax_program", RC_FAXPROGRAM },
 	{ "\\font_encoding", RC_FONT_ENCODING },
+	{ "\\html_command", RC_HTML_COMMAND },
 	{ "\\input", RC_INPUT },
 	{ "\\kbmap", RC_KBMAP },
 	{ "\\kbmap_primary", RC_KBMAP_PRIMARY },
@@ -199,7 +200,6 @@ static keyword_item lyxrcTags[] = {
 	{ "\\spell_command", RC_SPELL_COMMAND },
 	{ "\\tempdir_path", RC_TEMPDIRPATH },
 	{ "\\template_path", RC_TEMPLATEPATH },
-	{ "\\tth_command", RC_TTH_COMMAND },
 	{ "\\use_alt_language", RC_USE_ALT_LANG },
 	{ "\\use_escape_chars", RC_USE_ESC_CHARS },
 	{ "\\use_input_encoding", RC_USE_INP_ENC },
@@ -256,7 +256,7 @@ LyXRC::LyXRC()
 	default_papersize = PAPER_USLETTER;
 	custom_export_format = "ps";
 	chktex_command = "chktex -n1 -n3 -n6 -n9 -n22 -n25 -n30 -n38";
-	tth_command = "tth -t";
+	html_command = "tth -t";
 	fontenc = "default";
 	dpi = 75;
 	// Because a screen typically is wider than a piece of paper:
@@ -564,9 +564,9 @@ int LyXRC::Read(string const &filename)
 				chktex_command = lexrc.GetString();
 			break;
 
-		case RC_TTH_COMMAND:
+		case RC_HTML_COMMAND:
 			if (lexrc.next())
-				tth_command = lexrc.GetString();
+				html_command = lexrc.GetString();
 			break;
 
 		case RC_SCREEN_DPI:

src/lyxrc.h

@@ -98,8 +98,8 @@ public:
         LYX_PAPER_SIZE default_papersize;
 	/// command to run chktex incl. options
 	string chktex_command;
-	/// command to run tth incl. options
-	string tth_command;
+	/// command to run an html converter incl. options
+	string html_command;
 	///
 	string sgml_extra_options;
 	///

src/menus.C

@@ -572,6 +572,12 @@ void Menus::ShowFileMenu(FL_OBJECT *ob, long)
 		fl_setpup_mode(SubFileExport, 41, FL_PUP_GREY);
 		fl_setpup_mode(SubFileExport, 42, FL_PUP_GREY);
 	}
+
+	if (lyxrc->html_command == "none") {
+		// Disable export HTML
+		fl_setpup_mode(SubFileExport, 44, FL_PUP_GREY);
+	}
+
 	// xgettext:no-c-format
 	fl_addtopup(FileMenu,_("|Import%m"), SubFileImport);
 	// xgettext:no-c-format

src/support/lyxlib.h

@@ -56,7 +56,7 @@ struct lyx {
 		return ::_getcwd2(buffer, size);
 #endif
 	};
-	static chdir(const char * name) {
+	static int chdir(const char * name) {
 #ifndef __EMX__
 		return ::chdir(name);
 #else

src/support/lyxstring.C

@@ -890,9 +890,8 @@ lyxstring::size_type lyxstring::find(value_type const * ptr, size_type i,
 				 size_type n) const
 {
 	Assert(ptr);
-	if (!rep->sz || !*ptr) return npos;
+	if (!rep->sz || !*ptr || i >= rep->sz) return npos;
 	
-	Assert(i < rep->sz);
 	TestlyxstringInvariant(this);
 
 	// What is "n" here? is it the number of value_types to use in ptr
@@ -932,9 +931,8 @@ lyxstring::size_type lyxstring::find(value_type const * s, size_type i) const
 
 lyxstring::size_type lyxstring::find(value_type c, size_type i) const
 {
-	if (!rep->sz) return npos;
+	if (!rep->sz || i >= rep->sz) return npos;
 
-	Assert(i < rep->sz);
 	TestlyxstringInvariant(this);
 
         for (size_type t = 0; t + i < length(); ++t) {