%{ // -*-Fundamental-*-
/*
- lexer.l -- implement the Flex lexer
+ lexer.ll -- implement the Flex lexer
source file of the LilyPond music typesetter
- (c) 1996,1997 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
*/
lex.backup
contains no backup states, but only the reminder
Compressed tables always back up.
- (don-t forget to rm lex.yy.cc :-)
+ (don-t forget to rm lex.yy.cc :-)
*/
#include <stdio.h>
#include <ctype.h>
+#include <errno.h>
+/* Flex >= 2.5.29 fix; FlexLexer.h's multiple include bracing breaks
+ when building the actual lexer. */
+#define LEXER_CC
+
+#include <iostream>
+using namespace std;
+
+#include "source-file.hh"
+#include "parse-scm.hh"
+#include "lily-guile.hh"
#include "string.hh"
#include "string-convert.hh"
#include "my-lily-lexer.hh"
-#include "array.hh"
+#include "input-file-results.hh"
#include "interval.hh"
+#include "lily-guile.hh"
#include "parser.hh"
-#include "debug.hh"
-#include "parseconstruct.hh"
+#include "warn.hh"
#include "main.hh"
-#include "musical-request.hh"
-#include "identifier.hh"
+#include "version.hh"
+#include "lilypond-input-version.hh"
+#include "context-def.hh"
+#include "identifier-smob.hh"
+
+/*
+RH 7 fix (?)
+*/
+#define isatty HORRIBLEKLUDGE
+
void strip_trailing_white (String&);
void strip_leading_white (String&);
+String lyric_fudge (String s);
+
+SCM
+lookup_markup_command (String s);
+
+bool
+valid_version_b (String s);
+
+
#define start_quote() \
yy_push_state (quote);\
yylval.string = new String
-#define yylval (*(YYSTYPE*)lexval_l)
+#define yylval \
+ (*(YYSTYPE*)lexval)
#define YY_USER_ACTION add_lexed_char (YYLeng ());
/*
*/
+
+SCM scan_fraction (String);
+SCM (* scm_parse_error_handler) (void *);
+
+
+
%}
%option c++
%option never-interactive
%option warn
+%x renameinput
+%x version
%x chords
%x incl
%x lyrics
%x notes
+%x figures
%x quote
%x longcomment
-
+%x markup
A [a-zA-Z]
AA {A}|_
N [0-9]
AN {AA}|{N}
-PUNCT [?!:']
+PUNCT [?!:'`]
ACCENT \\[`'"^]
-NATIONAL [\001-\006\021-\027\031\036\200-\377]
+NATIONAL [\001-\006\021-\027\031\036\200-\377]
TEX {AA}|-|{PUNCT}|{ACCENT}|{NATIONAL}
WORD {A}{AN}*
ALPHAWORD {A}+
DIGIT {N}
UNSIGNED {N}+
+E_UNSIGNED \\{N}+
+FRACTION {N}+\/{N}+
INT -?{UNSIGNED}
REAL ({INT}\.{N}*)|(-?\.{N}+)
KEYWORD \\{WORD}
BLACK [^ \n\t\f\r]
RESTNAME [rs]
NOTECOMMAND \\{A}+
-LYRICS ({AA}|{TEX})[^0-9 \t\n\f]*
+MARKUPCOMMAND \\({A}|[-_])+
+LYRICS ({AA}|{TEX})[^0-9 \t\n\r\f]*
ESCAPED [nt\\'"]
EXTENDER __
HYPHEN --
// windows-suck-suck-suck
}
-<INITIAL,chords,incl,lyrics,notes>{
+<INITIAL,chords,incl,markup,lyrics,notes,figures>{
"%{" {
yy_push_state (longcomment);
}
- %[^{\n].*\n {
+ %[^{\n\r].*[\n\r] {
}
- %[^{\n] { // backup rule
+ %[^{\n\r] { // backup rule
}
- %\n {
+ %[\n\r] {
}
- %[^{\n].* {
+ %[^{\n\r].* {
}
{WHITE}+ {
}
}
+<INITIAL,chords,lyrics,notes,figures>\\version{WHITE}* {
+ yy_push_state (version);
+}
+<INITIAL,chords,lyrics,notes,figures>\\renameinput{WHITE}* {
+ yy_push_state (renameinput);
+}
+<version>\"[^"]*\" { /* got the version number */
+ String s (YYText ()+1);
+ s = s.left_string (s.index_last ('\"'));
+
+ yy_pop_state();
+ if (!valid_version_b (s))
+ return INVALID;
+}
+<renameinput>\"[^"]*\" { /* got the version number */
+ String s (YYText ()+1);
+ s = s.left_string (s.index_last ('\"'));
+
+ yy_pop_state();
+ this->here_input().source_file_->name_ = s;
+ progress_indication (_f("\nRenamed input to `%s'", s.to_str0()));
+ scm_module_define (gh_car (scopes_),
+ ly_symbol2scm ("input-file-name"),
+ scm_makfrom0str (s.to_str0()));
+
+}
+
+<version>. {
+ LexerError ("No quoted string found after \\version");
+ yy_pop_state ();
+}
+<renameinput>. {
+ LexerError ("No quoted string found after \\renameinput");
+ yy_pop_state ();
+}
<longcomment>{
[^\%]* {
}
yy_pop_state ();
}
<<EOF>> {
- LexerError (_ ("EOF found inside a comment").ch_C ());
+ LexerError (_ ("EOF found inside a comment").to_str0 ());
+ main_input_b_ = false;
if (! close_input ())
yyterminate (); // can't move this, since it actually rets a YY_NULL
}
}
-<INITIAL,chords,lyrics,notes>\\maininput {
+<INITIAL,chords,lyrics,notes,figures>\\maininput {
if (!main_input_b_)
{
start_main_input ();
main_input_b_ = true;
}
else
- error ("\\maininput disallowed outside init files.");
+ error (_ ("\\maininput not allowed outside init files"));
}
-<INITIAL,chords,lyrics,notes>\\include {
+<INITIAL,chords,lyrics,figures,notes>\\include {
yy_push_state (incl);
}
<incl>\"[^"]*\";? { /* got the include file name */
String s (YYText ()+1);
- s = s.left_str (s.index_last_i ('"'));
- DOUT << "#include `" << s << "\'\n";
- new_input (s,source_global_l);
+ s = s.left_string (s.index_last ('"'));
+
+ new_input (s, &global_input_file->sources_ );
yy_pop_state ();
}
<incl>\\{BLACK}*;?{WHITE} { /* got the include identifier */
String s = YYText () + 1;
strip_trailing_white (s);
- if (s.length_i () && (s[s.length_i () - 1] == ';'))
- s = s.left_str (s.length_i () - 1);
- DOUT << "#include `\\" << s << "'\n";
- Identifier * id = lookup_identifier (s);
- if (id)
- {
- String* s_l = id->access_content_String (false);
- DOUT << "#include `" << *s_l << "\'\n";
- new_input (*s_l, source_global_l);
-
- yy_pop_state ();
- }
- else
- {
- String msg (_f ("undefined identifier: `%s\'", s ));
- LexerError (msg.ch_C ());
+ if (s.length () && (s[s.length () - 1] == ';'))
+ s = s.left_string (s.length () - 1);
+
+ SCM sid = lookup_identifier (s);
+ if (gh_string_p (sid)) {
+ new_input (ly_scm2string (sid), &global_input_file->sources_);
+ yy_pop_state ();
+ } else {
+ String msg (_f ("wrong or undefined identifier: `%s'", s ));
+
+ LexerError (msg.to_str0 ());
+ SCM err = scm_current_error_port ();
+ scm_puts ("This value was found in the table: ", err);
+ scm_display (sid, err);
}
}
<incl>\"[^"]* { // backup rule
- cerr << _ ("missing end quote") << endl;
+ error (_ ("Missing end quote"));
exit (1);
}
-<chords,notes>{RESTNAME} {
+<chords,notes,figures>{RESTNAME} {
const char *s = YYText ();
- yylval.string = new String (s);
- DOUT << "rest:"<< yylval.string;
+ yylval.scm = scm_makfrom0str (s);
return RESTNAME;
}
-<chords,notes>R {
- return MEASURES;
+<chords,notes,figures>R {
+ return MULTI_MEASURE_REST;
}
-<INITIAL,chords,lyrics,notes>\\\${BLACK}*{WHITE} {
+<INITIAL,chords,lyrics,notes,figures>\\\${BLACK}*{WHITE} {
String s=YYText () + 2;
- s=s.left_str (s.length_i () - 1);
+ s=s.left_string (s.length () - 1);
return scan_escaped_word (s);
}
-<INITIAL,chords,lyrics,notes>\${BLACK}*{WHITE} {
+<INITIAL,chords,lyrics,notes,figures>\${BLACK}*{WHITE} {
String s=YYText () + 1;
- s=s.left_str (s.length_i () - 1);
+ s=s.left_string (s.length () - 1);
return scan_bare_word (s);
}
-<INITIAL,chords,lyrics,notes>\\\${BLACK}* { // backup rule
- cerr << _ ("white expected") << endl;
+<INITIAL,chords,lyrics,notes,figures>\\\${BLACK}* { // backup rule
+ error (_("white expected"));
exit (1);
}
-<INITIAL,chords,lyrics,notes>\${BLACK}* { // backup rule
- cerr << _ ("white expected") << endl;
+<INITIAL,chords,lyrics,notes,figures>\${BLACK}* { // backup rule
+ error (_("white expected"));
exit (1);
}
-<notes>{
+
+<INITIAL,markup,chords,lyrics,notes,figures># { //embedded scm
+ //char const* s = YYText () + 1;
+ char const* s = here_str0 ();
+ int n = 0;
+ SCM sval = ly_parse_scm (s, &n, here_input (),
+ safe_global_b && main_input_b_);
+
+ if (sval == SCM_UNDEFINED)
+ {
+ sval = SCM_UNSPECIFIED;
+ errorlevel_ = 1;
+ }
+
+ for (int i=0; i < n; i++)
+ {
+ yyinput ();
+ }
+ char_count_stack_.top () += n;
+
+ if (unpack_identifier (sval) != SCM_UNDEFINED)
+ {
+ yylval.scm = unpack_identifier(sval);
+ return identifier_type (yylval.scm);
+ }
+
+ yylval.scm = sval;
+ return SCM_T;
+}
+<INITIAL,notes,lyrics>{
+ \<\< {
+ return LESSLESS;
+ }
+ \>\> {
+ return MOREMORE;
+ }
+}
+<figures>{
+ _ {
+ return FIGURE_SPACE;
+ }
+ \> {
+ return FIGURE_CLOSE;
+ }
+ \< {
+ return FIGURE_OPEN;
+ }
+}
+
+<notes,figures>{
{ALPHAWORD} {
return scan_bare_word (YYText ());
}
{NOTECOMMAND} {
return scan_escaped_word (YYText () + 1);
}
+ {FRACTION} {
+ yylval.scm = scan_fraction (YYText ());
+ return FRACTION;
+ }
{DIGIT} {
- yylval.i = String_convert::dec2_i (String (YYText ()));
+ yylval.i = String_convert::dec2int (String (YYText ()));
return DIGIT;
}
-
{UNSIGNED} {
- yylval.i = String_convert::dec2_i (String (YYText ()));
+ yylval.i = String_convert::dec2int (String (YYText ()));
return UNSIGNED;
}
+ {E_UNSIGNED} {
+ yylval.i = String_convert::dec2int (String (YYText () +1));
+ return E_UNSIGNED;
+ }
\" {
start_quote ();
}
<quote>{
\\{ESCAPED} {
- *yylval.string += to_str (escaped_char(YYText()[1]));
+ *yylval.string += to_string (escaped_char (YYText ()[1]));
}
[^\\"]+ {
*yylval.string += YYText ();
}
\" {
- DOUT << "quoted string: `" << *yylval.string << "'\n";
+
yy_pop_state ();
+
+ /* yylval is union. Must remember STRING before setting SCM*/
+ String *sp = yylval.string;
+ yylval.scm = scm_makfrom0str (sp->to_str0 ());
+ delete sp;
return STRING;
}
. {
\" {
start_quote ();
}
+ {FRACTION} {
+ yylval.scm = scan_fraction (YYText ());
+ return FRACTION;
+ }
{UNSIGNED} {
- yylval.i = String_convert::dec2_i (String (YYText ()));
+ yylval.i = String_convert::dec2int (String (YYText ()));
return UNSIGNED;
}
{NOTECOMMAND} {
return yylval.i = EXTENDER;
if (s == "--")
return yylval.i = HYPHEN;
- int i = 0;
- while ((i=s.index_i ("_")) != -1) // change word binding "_" to " "
- *(s.ch_l () + i) = ' ';
- if ((i=s.index_i ("\\,")) != -1) // change "\," to TeX's "\c "
- {
- *(s.ch_l () + i + 1) = 'c';
- s = s.left_str (i+2) + " " + s.right_str (s.length_i ()-i-2);
- }
- yylval.string = new String (s);
- DOUT << "lyric : `" << s << "'\n";
+ s = lyric_fudge (s);
+
+ char c = s[s.length () - 1];
+ if (c == '{' || c == '}') // brace open is for not confusing dumb tools.
+ here_input ().warning (
+ _ ("Brace found at end of lyric. Did you forget a space?"));
+ yylval.scm = scm_makfrom0str (s.to_str0 ());
+
+
return STRING;
}
. {
- return yylval.c = YYText ()[0];
+ return YYText ()[0];
}
}
<chords>{
{NOTECOMMAND} {
return scan_escaped_word (YYText () + 1);
}
+ {FRACTION} {
+ yylval.scm = scan_fraction (YYText ());
+ return FRACTION;
+ }
{UNSIGNED} {
- yylval.i = String_convert::dec2_i (String (YYText ()));
+ yylval.i = String_convert::dec2int (String (YYText ()));
return UNSIGNED;
}
\" {
start_quote ();
}
+ - {
+ return CHORD_MINUS;
+ }
+ : {
+ return CHORD_COLON;
+ }
+ \/\+ {
+ return CHORD_BASS;
+ }
+ \/ {
+ return CHORD_SLASH;
+ }
+ \^ {
+ return CHORD_CARET;
+ }
. {
- return yylval.c = YYText ()[0];
+ return YYText ()[0];
}
}
-<<EOF>> {
- DOUT << "<<eof>>";
+<markup>{
+ \" {
+ start_quote ();
+ }
+ \< {
+ return '<';
+ }
+ \> {
+ return '>';
+ }
+ {MARKUPCOMMAND} {
+ String str (YYText() + 1);
+ SCM s = lookup_markup_command (str);
+
+ if (gh_pair_p (s) && gh_symbol_p (gh_cdr (s)) ) {
+ yylval.scm = gh_car(s);
+ SCM tag = gh_cdr(s);
+ if (tag == ly_symbol2scm("markup0"))
+ return MARKUP_HEAD_MARKUP0;
+ if (tag == ly_symbol2scm("empty"))
+ return MARKUP_HEAD_EMPTY;
+ else if (tag == ly_symbol2scm ("markup0-markup1"))
+ return MARKUP_HEAD_MARKUP0_MARKUP1;
+ else if (tag == ly_symbol2scm ("markup-list0"))
+ return MARKUP_HEAD_LIST0;
+ else if (tag == ly_symbol2scm ("scheme0"))
+ return MARKUP_HEAD_SCM0;
+ else if (tag == ly_symbol2scm ("scheme0-scheme1"))
+ return MARKUP_HEAD_SCM0_SCM1;
+ else if (tag == ly_symbol2scm ("scheme0-markup1"))
+ return MARKUP_HEAD_SCM0_MARKUP1;
+ else if (tag == ly_symbol2scm ("scheme0-scheme1-markup2"))
+ return MARKUP_HEAD_SCM0_SCM1_MARKUP2;
+ else if (tag == ly_symbol2scm ("scheme0-scheme1-scheme2"))
+ return MARKUP_HEAD_SCM0_SCM1_SCM2;
+ else {
+ programming_error ("No parser tag defined for this signature. Abort");
+ ly_display_scm (s);
+ assert(false);
+ }
+ } else
+ return scan_escaped_word (str);
+ }
+ [{}] {
+ return YYText()[0];
+ }
+ [^#{}"\\ \t\n\r\f]+ {
+ String s (YYText ());
+
+ char c = s[s.length () - 1];
+ if (c == '{' || c == '}') // brace open is for not confusing dumb tools.
+ here_input ().warning (
+ _ ("Brace found at end of markup. Did you forget a space?"));
+ yylval.scm = scm_makfrom0str (s.to_str0 ());
+
+
+ return STRING;
+ }
+ . {
+ return YYText()[0];
+ }
+}
+
+<<EOF>> {
+ main_input_b_ = false;
if (! close_input ()) {
yyterminate (); // can't move this, since it actually rets a YY_NULL
}
Real r;
int cnv=sscanf (YYText (), "%lf", &r);
assert (cnv == 1);
- DOUT << "REAL" << r<<'\n';
- yylval.real = r;
+
+ yylval.scm = gh_double2scm (r);
return REAL;
}
{UNSIGNED} {
- yylval.i = String_convert::dec2_i (String (YYText ()));
+ yylval.i = String_convert::dec2int (String (YYText ()));
return UNSIGNED;
}
+
[{}] {
- DOUT << "parens\n";
return YYText ()[0];
}
[*:=] {
char c = YYText ()[0];
- DOUT << "misc char" <<c<<"\n";
+
return c;
}
-<INITIAL,notes>. {
- return yylval.c = YYText ()[0];
+<INITIAL,notes,figures>. {
+ return YYText ()[0];
}
-<INITIAL,lyrics,notes>\\. {
+<INITIAL,lyrics,notes,figures>\\. {
char c= YYText ()[1];
- yylval.c = c;
+
switch (c) {
case '>':
return E_BIGGER;
return E_SMALLER;
case '!':
return E_EXCLAMATION;
+ case '(':
+ return E_OPEN;
+ case ')':
+ return E_CLOSE;
+ case '[':
+ return E_LEFTSQUARE;
+ case ']':
+ return E_RIGHTSQUARE;
+ case '~':
+ return E_TILDE;
+ case '\\':
+ return E_BACKSLASH;
+
default:
return E_CHAR;
}
}
<*>. {
- String msg = _f ("invalid character: `%c\'", YYText ()[0]);
- LexerError (msg.ch_C ());
+ String msg = _f ("invalid character: `%c'", YYText ()[0]);
+ LexerError (msg.to_str0 ());
return YYText ()[0];
}
%%
void
-My_lily_lexer::push_note_state ()
+My_lily_lexer::push_note_state (SCM tab)
{
+ pitchname_tab_stack_ = gh_cons (tab, pitchname_tab_stack_);
yy_push_state (notes);
}
void
-My_lily_lexer::push_chord_state ()
+My_lily_lexer::push_figuredbass_state()
{
+ yy_push_state (figures);
+}
+void
+My_lily_lexer::push_chord_state (SCM tab)
+{
+ pitchname_tab_stack_ = gh_cons (tab, pitchname_tab_stack_);
yy_push_state (chords);
}
yy_push_state (lyrics);
}
+void
+My_lily_lexer::push_markup_state ()
+{
+ yy_push_state (markup);
+}
+
void
My_lily_lexer::pop_state ()
{
+ if (YYSTATE == notes || YYSTATE == chords)
+ pitchname_tab_stack_ = gh_cdr (pitchname_tab_stack_);
yy_pop_state ();
}
+int
+My_lily_lexer::identifier_type(SCM sid)
+{
+ int k = try_special_identifiers(&yylval.scm , sid);
+ return k >= 0 ? k : SCM_IDENTIFIER;
+}
+
+
int
My_lily_lexer::scan_escaped_word (String str)
-{
- DOUT << "\\word: `" << str<<"'\n";
+{
+ // use more SCM for this.
+
+// SCM sym = ly_symbol2scm (str.to_str0 ());
+
int l = lookup_keyword (str);
if (l != -1) {
- DOUT << "(keyword)\n";
return l;
}
- Identifier * id = lookup_identifier (str);
- if (id) {
- DOUT << "(identifier)\n";
- yylval.id = id;
- return id->token_code_i_;
- }
- if ((YYSTATE != notes) && (YYSTATE != chords)) {
- if (notename_b (str)) {
- yylval.pitch = new Musical_pitch (lookup_notename (str));
- yylval.pitch->set_spot (Input (source_file_l (),
- here_ch_C ()));
- return NOTENAME_PITCH;
- }
+ SCM sid = lookup_identifier (str);
+ if (sid != SCM_UNDEFINED)
+ {
+ yylval.scm = sid;
+ return identifier_type (sid);
}
- if (check_debug)
- print_declarations (true);
- String msg (_f ("unknown escaped string: `\\%s\'", str));
- LexerError (msg.ch_C ());
- DOUT << "(string)";
- String *sp = new String (str);
- yylval.string=sp;
+
+ String msg (_f ("unknown escaped string: `\\%s'", str));
+ LexerError (msg.to_str0 ());
+
+ yylval.scm = scm_makfrom0str (str.to_str0 ());
+
return STRING;
}
int
My_lily_lexer::scan_bare_word (String str)
{
- DOUT << "word: `" << str<< "'\n";
+ SCM sym = ly_symbol2scm (str.to_str0 ());
if ((YYSTATE == notes) || (YYSTATE == chords)) {
- if (notename_b (str)) {
- DOUT << "(notename)\n";
- yylval.pitch = new Musical_pitch (lookup_notename (str));
- yylval.pitch->set_spot (Input (source_file_l (),
- here_ch_C ()));
- return (YYSTATE == notes) ? NOTENAME_PITCH : TONICNAME_PITCH;
- } else if (chordmodifier_b (str)) {
- DOUT << "(chordmodifier)\n";
- yylval.pitch = new Musical_pitch (lookup_chordmodifier (str));
- yylval.pitch->set_spot (Input (source_file_l (),
- here_ch_C ()));
- return CHORDMODIFIER_PITCH;
+ SCM handle = SCM_BOOL_F;
+ if (gh_pair_p (pitchname_tab_stack_))
+ handle = scm_hashq_get_handle (gh_car (pitchname_tab_stack_), sym);
+
+ if (gh_pair_p (handle)) {
+ yylval.scm = ly_cdr (handle);
+ if (unsmob_pitch (yylval.scm))
+ return (YYSTATE == notes) ? NOTENAME_PITCH : TONICNAME_PITCH;
+ else if (gh_symbol_p (yylval.scm))
+ return DRUM_PITCH;
+ }
+ else if ((handle = scm_hashq_get_handle (chordmodifier_tab_, sym))!= SCM_BOOL_F)
+ {
+ yylval.scm = ly_cdr (handle);
+ return CHORD_MODIFIER;
}
}
- yylval.string=new String (str);
+ yylval.scm = scm_makfrom0str (str.to_str0 ());
return STRING;
}
return YY_START == lyrics;
}
+bool
+My_lily_lexer::figure_state_b () const
+{
+ return YY_START == figures;
+}
+
/*
- urg, belong to String(_convert)
+ urg, belong to String (_convert)
and should be generalised
*/
void
strip_leading_white (String&s)
{
int i=0;
- for (; i < s.length_i (); i++)
+ for (; i < s.length (); i++)
if (!isspace (s[i]))
break;
- s = s.nomid_str (0, i);
+ s = s.nomid_string (0, i);
}
void
strip_trailing_white (String&s)
{
- int i=s.length_i ();
+ int i=s.length ();
while (i--)
if (!isspace (s[i]))
break;
- s = s.left_str (i+1);
+ s = s.left_string (i+1);
+}
+
+
+
+/* 1.9.0 == postfix articulations */
+Lilypond_version oldest_version ("1.9.0");
+
+
+bool
+valid_version_b (String s)
+{
+ Lilypond_version current ( MAJOR_VERSION "." MINOR_VERSION "." PATCH_LEVEL );
+ Lilypond_version ver (s);
+ if (! ((ver >= oldest_version) && (ver <= current)))
+ {
+ non_fatal_error (_f ("Incorrect lilypond version: %s (%s, %s)", ver.to_string (), oldest_version.to_string (), current.to_string ()));
+ non_fatal_error (_ ("Consider updating the input with the convert-ly script"));
+ return false;
+ }
+ return true;
+}
+
+
+/*
+ substittute _ adn \,
+*/
+String
+lyric_fudge (String s)
+{
+ char * chars =s.get_copy_str0 ();
+
+ for (char * p = chars; *p ; p++)
+ {
+ if (*p == '_' && (p == chars || *(p-1) != '\\'))
+ *p = ' ';
+ }
+
+ s = String (chars);
+ delete[] chars;
+
+ int i =0;
+ if ((i=s.index ("\\,")) != -1) // change "\," to TeX's "\c "
+ {
+ * (s.get_str0 () + i + 1) = 'c';
+ s = s.left_string (i+2) + " " + s.right_string (s.length ()-i-2);
+ }
+
+ return s;
}
+/*
+Convert "NUM/DEN" into a '(NUM . DEN) cons.
+*/
+SCM
+scan_fraction (String frac)
+{
+ int i = frac.index ('/');
+ int l = frac.length ();
+ String left = frac.left_string (i);
+ String right = frac.right_string (l - i - 1);
+
+ int n = String_convert::dec2int (left);
+ int d = String_convert::dec2int (right);
+ return gh_cons (gh_int2scm (n), gh_int2scm (d));
+}
+
+// Breaks for flex 2.5.31
+#if 0
+/* avoid silly flex induced gcc warnings */
+static void yy_push_state (int) {;}
+static void yy_pop_state () {;}
+static int yy_top_state () { return 0; }
+
+static void
+avoid_silly_flex_induced_gcc_warnings ()
+{
+ (void)yy_start_stack_ptr;
+ (void)yy_start_stack_depth;
+ (void)yy_start_stack;
+ yy_push_state (0);
+ yy_pop_state ();
+ yy_top_state ();
+ avoid_silly_flex_induced_gcc_warnings ();
+}
+#endif
+
+SCM
+lookup_markup_command (String s)
+{
+ static SCM proc ;
+ if (!proc)
+ proc = scm_c_eval_string ("lookup-markup-command");
+
+ return scm_call_1 (proc, scm_makfrom0str (s.to_str0 ()));
+}