X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgeneral-scheme.cc;fp=lily%2Fgeneral-scheme.cc;h=ae31e1eb9f8433d024faf3b9d8856db64730b83b;hb=e90f0536f9be39ada0bef0aeb0d275dec3b2fb5b;hp=8b5766387e0de808afe9c81d567c5cd9dfc16844;hpb=a8c9e8a7ca320ab0df5fd32e717fd62cd7635ce6;p=lilypond.git diff --git a/lily/general-scheme.cc b/lily/general-scheme.cc index 8b5766387e..ae31e1eb9f 100644 --- a/lily/general-scheme.cc +++ b/lily/general-scheme.cc @@ -1,10 +1,21 @@ /* - lily-guile.cc -- implement assorted Guile bindings + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter - - (c) 1998--2009 Jan Nieuwenhuizen + Copyright (C) 1998--2011 Jan Nieuwenhuizen Han-Wen Nienhuys + + LilyPond 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. + + LilyPond 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 LilyPond. If not, see . */ #include "config.hh" @@ -12,20 +23,22 @@ #include #include #include /* memset */ +#include using namespace std; +#include "dimensions.hh" +#include "file-name.hh" +#include "file-path.hh" #include "international.hh" #include "libc-extension.hh" #include "lily-guile.hh" -#include "misc.hh" -#include "warn.hh" -#include "version.hh" -#include "dimensions.hh" #include "main.hh" -#include "file-path.hh" +#include "misc.hh" +#include "program-option.hh" #include "relocate.hh" -#include "file-name.hh" #include "string-convert.hh" +#include "version.hh" +#include "warn.hh" LY_DEFINE (ly_start_environment, "ly:start-environment", 0, 0, 0, (), @@ -67,7 +80,9 @@ LY_DEFINE (ly_find_file, "ly:find-file", */ LY_DEFINE (ly_gulp_file, "ly:gulp-file", 1, 1, 0, (SCM name, SCM size), - "Read the file @var{name}, and return its contents in a string." + "Read @var{size} characters from the file @var{name}," + " and return its contents in a string." + " If @var{size} is undefined, the entire file is read." " The file is looked up using the search path.") { LY_ASSERT_TYPE (scm_is_string, name, 1); @@ -77,7 +92,7 @@ LY_DEFINE (ly_gulp_file, "ly:gulp-file", LY_ASSERT_TYPE (scm_is_number, size, 2); sz = scm_to_int (size); } - + string contents = gulp_file_to_string (ly_scm2string (name), true, sz); return scm_from_locale_stringn (contents.c_str (), contents.length ()); } @@ -123,26 +138,48 @@ LY_DEFINE (ly_programming_error, "ly:programming-error", { LY_ASSERT_TYPE (scm_is_string, str, 1); str = scm_simple_format (SCM_BOOL_F, str, rest); - programming_error (ly_scm2string (str)); + + if (get_program_option ("warning-as-error")) + error (ly_scm2string (str)); + else + programming_error (ly_scm2string (str)); + return SCM_UNSPECIFIED; } +LY_DEFINE (ly_success, "ly:success", + 1, 0, 1, (SCM str, SCM rest), + "A Scheme callable function to issue a success message @var{str}." + " The message is formatted with @code{format} and @var{rest}.") +{ + LY_ASSERT_TYPE (scm_is_string, str, 1); + str = scm_simple_format (SCM_BOOL_F, str, rest); + successful (ly_scm2string (str)); + return SCM_UNSPECIFIED; + +} LY_DEFINE (ly_warning, "ly:warning", 1, 0, 1, (SCM str, SCM rest), - "A Scheme callable function to issue the warning @code{str}." - " The message is formatted with @code{format} and @code{rest}.") + "A Scheme callable function to issue the warning @var{str}." + " The message is formatted with @code{format} and @var{rest}.") { LY_ASSERT_TYPE (scm_is_string, str, 1); str = scm_simple_format (SCM_BOOL_F, str, rest); - warning (ly_scm2string (str)); + + if (get_program_option ("warning-as-error")) + error (ly_scm2string (str)); + else + warning (ly_scm2string (str)); + return SCM_UNSPECIFIED; } LY_DEFINE (ly_dir_p, "ly:dir?", 1, 0, 0, (SCM s), - "A type predicate. The direction@tie{}@code{s} is @code{-1}," - " @code{0} or@tie{}@code{1}, where @code{-1} represents" - " left or down and @code{1} represents right or up.") + "Is @var{s} a direction? Valid directions are @code{-1}," + " @code{0}, or@tie{}@code{1}, where @code{-1} represents" + " left or down, @code{1}@tie{}represents right or up, and @code{0}" + " represents a neutral direction.") { if (scm_is_number (s)) { @@ -153,20 +190,35 @@ LY_DEFINE (ly_dir_p, "ly:dir?", } LY_DEFINE (ly_assoc_get, "ly:assoc-get", - 2, 1, 0, - (SCM key, SCM alist, SCM default_value), - "Return value if @var{key} in @var{alist}, else @code{default-value}" - " (or @code{#f} if not specified).") + 2, 2, 0, + (SCM key, SCM alist, SCM default_value, SCM strict_checking), + "Return value if @var{key} in @var{alist}, else @var{default-value}" + " (or @code{#f} if not specified). If @var{strict-checking} is set" + " to @code{#t} and @var{key} is not in @var{alist}, a programming_error" + " is output.") { LY_ASSERT_TYPE(ly_cheap_is_list, alist, 2); - + SCM handle = scm_assoc (key, alist); if (scm_is_pair (handle)) return scm_cdr (handle); - + if (default_value == SCM_UNDEFINED) default_value = SCM_BOOL_F; + if (strict_checking == SCM_BOOL_T) + { + string key_string = ly_scm2string + (scm_object_to_string (key, SCM_UNDEFINED)); + string default_value_string = ly_scm2string + (scm_object_to_string (default_value, + SCM_UNDEFINED)); + programming_error ("Cannot find key `" + + key_string + + "' in alist, setting to `" + + default_value_string + "'."); + } + return default_value; } @@ -182,13 +234,65 @@ LY_DEFINE (ly_string_substitute, "ly:string-substitute", string ss = ly_scm2string (s); replace_all (&ss, ly_scm2string (a), ly_scm2string (b)); - + return ly_string2scm (ss); } - + +bool +is_not_escape_character (Byte c) +{ + switch (c) + { + case '-': + case '.': + case '/': + case '0'...'9': + case ':': + case 'A'...'Z': + case '_': + case 'a'...'z': + return true; + } + + return false; +} + +LY_DEFINE (ly_string_percent_encode, "ly:string-percent-encode", + 1, 0, 0, (SCM str), + "Encode all characters in string @var{str} with hexadecimal" + " percent escape sequences, with the following exceptions:" + " characters @code{-}, @code{.}, @code{/}, and @code{_}; and" + " characters in ranges @code{0-9}, @code{A-Z}, and @code{a-z}.") +{ + LY_ASSERT_TYPE (scm_is_string, str, 1); + + string orig_str = ly_scm2string (str); + string new_str = ""; + + vsize i = 0; + vsize n = orig_str.size (); + + while (i < n) + { + Byte cur = orig_str[i]; + + if (is_not_escape_character (cur)) + new_str += cur; + else + { + new_str += '%'; + new_str += String_convert::bin2hex (cur); + } + + i++; + } + + return ly_string2scm (new_str); +} + LY_DEFINE (ly_number_2_string, "ly:number->string", 1, 0, 0, (SCM s), - "Convert @var{num} to a string without generating many decimals.") + "Convert @var{s} to a string without generating many decimals.") { LY_ASSERT_TYPE (scm_is_number, s, 1); @@ -311,10 +415,11 @@ LY_DEFINE (ly_effective_prefix, "ly:effective-prefix", } LY_DEFINE (ly_chain_assoc_get, "ly:chain-assoc-get", - 2, 1, 0, (SCM key, SCM achain, SCM dfault), + 2, 2, 0, (SCM key, SCM achain, SCM default_value, SCM strict_checking), "Return value for @var{key} from a list of alists @var{achain}." - " If no entry is found, return @var{dfault} or @code{#f} if no" - " @var{dfault} is specified.") + " If no entry is found, return @var{default-value} or @code{#f} if" + " @var{default-value} is not specified. With @var{strict-checking}" + " set to @code{#t}, a programming_error is output in such cases.") { if (scm_is_pair (achain)) { @@ -322,9 +427,23 @@ LY_DEFINE (ly_chain_assoc_get, "ly:chain-assoc-get", if (scm_is_pair (handle)) return scm_cdr (handle); else - return ly_chain_assoc_get (key, scm_cdr (achain), dfault); + return ly_chain_assoc_get (key, scm_cdr (achain), default_value); + } + + if (strict_checking == SCM_BOOL_T) + { + string key_string = ly_scm2string + (scm_object_to_string (key, SCM_UNDEFINED)); + string default_value_string = ly_scm2string + (scm_object_to_string (default_value, + SCM_UNDEFINED)); + programming_error ("Cannot find key `" + + key_string + + "' in achain, setting to `" + + default_value_string + "'."); } - return dfault == SCM_UNDEFINED ? SCM_BOOL_F : dfault; + + return default_value == SCM_UNDEFINED ? SCM_BOOL_F : default_value; } @@ -335,12 +454,13 @@ LY_DEFINE (ly_stderr_redirect, "ly:stderr-redirect", LY_ASSERT_TYPE (scm_is_string, file_name, 1); string m = "w"; + FILE *stderrfile; if (mode != SCM_UNDEFINED && scm_string_p (mode)) m = ly_scm2string (mode); /* dup2 and (fileno (current-error-port)) do not work with mingw'c gcc -mwindows. */ - fflush (stderr); - freopen (ly_scm2string (file_name).c_str (), m.c_str (), stderr); + fflush (stderr); + stderrfile = freopen (ly_scm2string (file_name).c_str (), m.c_str (), stderr); return SCM_UNSPECIFIED; } @@ -357,7 +477,7 @@ LY_DEFINE (ly_hash_table_keys, "ly:hash-table-keys", 1,0,0, (SCM tab), "Return a list of keys in @var{tab}.") { - return scm_internal_hash_fold ((Hash_closure_function) & accumulate_symbol, + return scm_internal_hash_fold ((scm_t_hash_fold_fn) &accumulate_symbol, NULL, SCM_EOL, tab); } @@ -366,11 +486,11 @@ LY_DEFINE (ly_camel_case_2_lisp_identifier, "ly:camel-case->lisp-identifier", "Convert @code{FooBar_Bla} to @code{foo-bar-bla} style symbol.") { LY_ASSERT_TYPE (ly_is_symbol, name_sym, 1); - + /* TODO: should use strings instead? */ - + const string in = ly_symbol2string (name_sym); string result = camel_case_to_lisp_identifier (in); @@ -385,7 +505,7 @@ LY_DEFINE (ly_expand_environment, "ly:expand-environment", return ly_string2scm (expand_environment_variables (ly_scm2string (str))); } - + LY_DEFINE (ly_truncate_list_x, "ly:truncate-list!", 2, 0, 0, (SCM lst, SCM i), @@ -410,7 +530,7 @@ LY_DEFINE (ly_truncate_list_x, "ly:truncate-list!", } string -format_single_argument (SCM arg, int precision) +format_single_argument (SCM arg, int precision, bool escape = false) { if (scm_is_integer (arg) && scm_exact_p (arg) == SCM_BOOL_T) return (String_convert::int_string (scm_to_int (arg))); @@ -429,22 +549,36 @@ format_single_argument (SCM arg, int precision) return (String_convert::form_string ("%.*lf", precision, val)); } else if (scm_is_string (arg)) - return (ly_scm2string (arg)); + { + string s = ly_scm2string (arg); + if (escape) + { + // Escape backslashes and double quotes, wrap it in double quotes + replace_all (&s, "\\", "\\\\"); + replace_all (&s, "\"", "\\\""); + // don't replace percents, since the png backend uses %d as escape sequence + // replace_all (&s, "%", "\\%"); + replace_all (&s, "$", "\\$"); + s = "\"" + s + "\""; + } + return s; + } else if (scm_is_symbol (arg)) return (ly_symbol2string (arg)); else { - ly_progress (scm_from_locale_string ("Unsupported SCM value for format: ~a"), + ly_progress (scm_from_locale_string ("\nUnsupported SCM value for format: ~a"), scm_list_1 (arg)); } - - - return ""; + + + return ""; } LY_DEFINE (ly_format, "ly:format", 1, 0, 1, (SCM str, SCM rest), - "LilyPond specific format, supporting @code{~a} and @code{~[0-9]f}.") + "LilyPond specific format, supporting @code{~a} and @code{~[0-9]f}." + " Basic support for @code{~s} is also provided.") { LY_ASSERT_TYPE (scm_is_string, str, 1); @@ -460,7 +594,7 @@ LY_DEFINE (ly_format, "ly:format", if (tilde == NPOS) break ; - + tilde ++; char spec = format.at (tilde ++); @@ -470,16 +604,16 @@ LY_DEFINE (ly_format, "ly:format", { if (!scm_is_pair (rest)) { - programming_error (string (__FUNCTION__) + programming_error (string (__FUNCTION__) + ": not enough arguments for format."); return ly_string2scm (""); } - + SCM arg = scm_car (rest); rest = scm_cdr (rest); int precision = 8; - + if (spec == '$') precision = 2; else if (isdigit (spec)) @@ -487,9 +621,11 @@ LY_DEFINE (ly_format, "ly:format", precision = spec - '0'; spec = format.at (tilde ++); } - + if (spec == 'a' || spec == 'A' || spec == 'f' || spec == '$') results.push_back (format_single_argument (arg, precision)); + else if (spec == 's' || spec == 'S') + results.push_back (format_single_argument (arg, precision, true)); else if (spec == 'l') { SCM s = arg; @@ -502,7 +638,7 @@ LY_DEFINE (ly_format, "ly:format", if (s != SCM_EOL) results.push_back (format_single_argument (s, precision)); - + } } @@ -511,12 +647,12 @@ LY_DEFINE (ly_format, "ly:format", if (scm_is_pair (rest)) programming_error (string (__FUNCTION__) - + ": too many arguments"); + + ": too many arguments"); vsize len = 0; for (vsize i = 0; i < results.size (); i++) len += results[i].size (); - + char *result = (char*) scm_malloc (len + 1); char *ptr = result; for (vsize i = 0; i < results.size (); i++) @@ -525,6 +661,76 @@ LY_DEFINE (ly_format, "ly:format", ptr += results[i].size (); } *ptr = '\0'; - + return scm_take_locale_stringn (result, len); } + +int +ly_run_command (char *argv[], char **standard_output, char **standard_error) +{ + GError *error = 0; + int exit_status = 0; + int flags = G_SPAWN_SEARCH_PATH; + if (!standard_output) + flags |= G_SPAWN_STDOUT_TO_DEV_NULL; + if (!standard_error) + flags |= G_SPAWN_STDERR_TO_DEV_NULL; + if (!g_spawn_sync (0, argv, 0, GSpawnFlags (flags), + 0, 0, + standard_output, standard_error, + &exit_status, &error)) + { + fprintf (stderr, "failed (%d): %s: %s\n", exit_status, argv[0], error->message); + g_error_free (error); + if (!exit_status) + exit_status = -1; + } + + return exit_status; +} + +static char * +ly_scm2utf8 (SCM str) +{ + char *p = ly_scm2str0 (str); + char *g = g_locale_to_utf8 (p, -1, 0, 0, 0); + free (p); + return g; +} + +LY_DEFINE (ly_spawn, "ly:spawn", + 1, 0, 1, (SCM command, SCM rest), + "Simple interface to g_spawn_sync" + " @var{str}." + " The error is formatted with @code{format} and @var{rest}.") + +{ + LY_ASSERT_TYPE (scm_is_string, command, 1); + + int argc = scm_is_pair (rest) ? scm_ilength (rest) : 0; + char **argv = new char*[argc + 2]; + + int n = 0; + argv[n++] = ly_scm2utf8 (command); + for (SCM s = rest; scm_is_pair (s); s = scm_cdr (s)) + argv[n++] = ly_scm2utf8 (scm_car (s)); + argv[n] = 0; + + char *standard_output = 0; + char *standard_error = 0; + int exit_status = be_verbose_global + ? ly_run_command (argv, &standard_output, &standard_error) + : ly_run_command (argv, 0, 0); + + if (be_verbose_global) + { + fprintf (stderr, "\n%s", standard_output); + fprintf (stderr, "%s", standard_error); + } + + for (int i = 0; i < n; i++) + free (argv[i]); + delete[] argv; + + return scm_from_int (exit_status); +}