X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fparse-scm.cc;h=78a3c52865fa33c768a04911493aaffa56428e8d;hb=7e79448be56dad04b97e89e0c49dce64bf16100e;hp=f40d10abbab8fa3cc3ec6dfa53378e4e4926f395;hpb=7c1ee9ae5133a32f00fe0d2f59b1a6e84baa0bed;p=lilypond.git diff --git a/lily/parse-scm.cc b/lily/parse-scm.cc index f40d10abba..78a3c52865 100644 --- a/lily/parse-scm.cc +++ b/lily/parse-scm.cc @@ -1,9 +1,9 @@ /* - parse-scm -- + parse-scm -- Parse a single SCM expression exactly. source file of the GNU LilyPond music typesetter - (c) 2004 Han-Wen Nienhuys + (c) 2004--2005 Han-Wen Nienhuys */ #include "parse-scm.hh" @@ -16,16 +16,16 @@ /* Pass string to scm parser, evaluate one expression. Return result value and #chars read. - + Thanks to Gary Houston */ SCM -internal_ly_parse_scm (Parse_start * ps) +internal_ly_parse_scm (Parse_start *ps) { Source_file *sf = ps->start_location_.source_file_; SCM port = sf->get_port (); - int off = ps->start_location_.defined_str0_ - sf->to_str0 (); - + int off = ps->start_location_.start_ - sf->to_str0 (); + scm_seek (port, scm_long2num (off), scm_long2num (SEEK_SET)); SCM from = scm_ftell (port); @@ -48,7 +48,7 @@ internal_ly_parse_scm (Parse_start * ps) else answer = scm_primitive_eval (form); } - + /* Reset read_buf for scm_ftell. Shouldn't scm_read () do this for us? */ scm_fill_input (port); @@ -67,18 +67,18 @@ internal_ly_parse_scm (Parse_start * ps) SCM catch_protected_parse_body (void *p) { - Parse_start *ps = (Parse_start*) p; - + Parse_start *ps = (Parse_start *) p; + return internal_ly_parse_scm (ps); } -SCM +SCM parse_handler (void *data, SCM tag, SCM args) { - Parse_start* ps = (Parse_start *) data; + Parse_start *ps = (Parse_start *) data; (void) tag; - - ps->start_location_.error (_("GUILE signaled an error for the expression beginning here")); + + ps->start_location_.error (_ ("GUILE signaled an error for the expression beginning here")); if (scm_ilength (args) > 2) scm_display_error_message (scm_cadr (args), scm_caddr (args), scm_current_error_port ()); @@ -86,22 +86,21 @@ parse_handler (void *data, SCM tag, SCM args) /* The following is a kludge; we should probably search for [a-z][0-9] (a note), and start before that. - */ + */ ps->nchars = 1; - + return SCM_UNDEFINED; } /* Do some magical incantations: if not, lily will exit on the first - GUILE error, leaving no location trace. - */ - + GUILE error, leaving no location trace. +*/ #if GUILE_MINOR_VERSION < 7 - #define READ_ERROR "misc-error" - #else - #define READ_ERROR "read-error" +#define READ_ERROR "misc-error" +#else +#define READ_ERROR "read-error" #endif SCM @@ -109,11 +108,11 @@ protected_ly_parse_scm (Parse_start *ps) { return scm_internal_catch (ly_symbol2scm (READ_ERROR), &catch_protected_parse_body, - (void*) ps, - &parse_handler, (void*) ps); + (void *) ps, + &parse_handler, (void *) ps); } -bool parse_protect_global = true; +bool parse_protect_global = true; /* Try parsing. Upon failure return SCM_UNDEFINED. FIXME: shouldn't we return SCM_UNSCPECIFIED -- jcn */ @@ -124,11 +123,11 @@ ly_parse_scm (char const *s, int *n, Input i, bool safe) ps.str = s; ps.start_location_ = i; ps.safe_ = safe; - + SCM ans = parse_protect_global ? protected_ly_parse_scm (&ps) : internal_ly_parse_scm (&ps); *n = ps.nchars; - return ans; + return ans; }