[COMMIT] Read and print char table defaults, chartab.c

APPROVE COMMIT NOTE: This patch has been committed. # HG changeset patch # User Aidan Kehoe <kehoea(a)parhasard.net&gt; # Date 1283713973 -3600 # Node ID 02c282ae97cb4acba2282536c0fcc100754a6f0e # Parent 1ed4cefddd122c1707463d21accc4b5c10bd6a90 Read and print char table defaults, chartab.c 2010-09-05 Aidan Kehoe <kehoea(a)parhasard.net&gt; * chartab.c (char_table_default_for_type, chartab_default_validate): New. (print_char_table, Freset_char_table, chartab_default_validate) (chartab_instantiate, structure_type_create_chartab): Accept keyword :default in the read syntax for char tables, and print the default when it is not what was expected for the time. Makes it a little easier to debug things. diff -r 1ed4cefddd12 -r 02c282ae97cb src/ChangeLog --- a/src/ChangeLog Sun Sep 05 19:22:37 2010 +0100 +++ b/src/ChangeLog Sun Sep 05 20:12:53 2010 +0100 ＠＠ -1,3 +1,13 ＠＠ +2010-09-05 Aidan Kehoe <kehoea(a)parhasard.net&gt; + + * chartab.c (char_table_default_for_type, + chartab_default_validate): New. + (print_char_table, Freset_char_table, chartab_default_validate) + (chartab_instantiate, structure_type_create_chartab): + Accept keyword :default in the read syntax for char tables, and + print the default when it is not what was expected for the + time. Makes it a little easier to debug things. + 2010-09-05 Aidan Kehoe <kehoea(a)parhasard.net&gt; * editfns.c (Fformat_time_string): diff -r 1ed4cefddd12 -r 02c282ae97cb src/chartab.c --- a/src/chartab.c Sun Sep 05 19:22:37 2010 +0100 +++ b/src/chartab.c Sun Sep 05 20:12:53 2010 +0100 ＠＠ -42,7 +42,7 ＠＠ #include "chartab.h" #include "syntax.h" -Lisp_Object Qchar_tablep, Qchar_table; +Lisp_Object Qchar_tablep, Qchar_table, Q_default; Lisp_Object Vall_syntax_tables; ＠＠ -301,6 +301,30 ＠＠ return Qnil; /* not reached */ } +static Lisp_Object +char_table_default_for_type (enum char_table_type type) +{ + switch (type) + { + case CHAR_TABLE_TYPE_CHAR: + return make_char (0); + break; + case CHAR_TABLE_TYPE_DISPLAY: + case CHAR_TABLE_TYPE_GENERIC: +#ifdef MULE + case CHAR_TABLE_TYPE_CATEGORY: +#endif /* MULE */ + return Qnil; + break; + + case CHAR_TABLE_TYPE_SYNTAX: + return make_integer (Sinherit); + break; + } + ABORT(); + return Qzero; +} + struct ptemap { Lisp_Object printcharfun; ＠＠ -336,8 +360,15 ＠＠ arg.printcharfun = printcharfun; arg.first = 1; - write_fmt_string_lisp (printcharfun, "#s(char-table :type %s :data (", - 1, char_table_type_to_symbol (ct->type)); + write_fmt_string_lisp (printcharfun, + "#s(char-table :type %s", 1, + char_table_type_to_symbol (ct->type)); + if (!(EQ (ct->default_, char_table_default_for_type (ct->type)))) + { + write_fmt_string_lisp (printcharfun, " :default %S", 1, ct->default_); + } + + write_ascstring (printcharfun, " :data ("); map_char_table (obj, &range, print_table_entry, &arg); write_ascstring (printcharfun, "))"); ＠＠ -492,37 +523,13 ＠＠ (char_table)) { Lisp_Char_Table *ct; - Lisp_Object def; CHECK_CHAR_TABLE (char_table); ct = XCHAR_TABLE (char_table); - switch (ct->type) - { - case CHAR_TABLE_TYPE_CHAR: - def = make_char (0); - break; - case CHAR_TABLE_TYPE_DISPLAY: - case CHAR_TABLE_TYPE_GENERIC: -#ifdef MULE - case CHAR_TABLE_TYPE_CATEGORY: -#endif /* MULE */ - def = Qnil; - break; - - case CHAR_TABLE_TYPE_SYNTAX: - def = make_int (Sinherit); - break; - - default: - ABORT (); - def = Qnil; - break; - } - /* Avoid doubly updating the syntax table by setting the default ourselves, since set_char_table_default() also updates. */ - ct->default_ = def; + ct->default_ = char_table_default_for_type (ct->type); fill_char_table (ct, Qunbound); return Qnil; ＠＠ -1543,12 +1550,22 ＠＠ return 1; } +static int +chartab_default_validate (Lisp_Object UNUSED (keyword), + Lisp_Object UNUSED (value), + Error_Behavior UNUSED (errb)) +{ + /* We can't yet validate this, since we don't know what the type of the + char table is. We do the validation below in chartab_instantiate(). */ + return 1; +} + static Lisp_Object chartab_instantiate (Lisp_Object plist) { Lisp_Object chartab; Lisp_Object type = Qgeneric; - Lisp_Object dataval = Qnil; + Lisp_Object dataval = Qnil, default_ = Qunbound; if (KEYWORDP (Fcar (plist))) { ＠＠ -1562,6 +1579,10 ＠＠ { type = value; } + else if (EQ (key, Q_default)) + { + default_ = value; + } else if (!KEYWORDP (key)) { signal_error ＠＠ -1598,6 +1619,13 ＠＠ #endif /* NEED_TO_HANDLE_21_4_CODE */ chartab = Fmake_char_table (type); + if (!UNBOUNDP (default_)) + { + check_valid_char_table_value (default_, XCHAR_TABLE_TYPE (chartab), + ERROR_ME); + set_char_table_default (chartab, default_); + set_char_table_default (XCHAR_TABLE (chartab)->mirror_table, default_); + } while (!NILP (dataval)) { ＠＠ -1872,6 +1900,7 ＠＠ DEFSYMBOL (Qchar_table); DEFSYMBOL_MULTIWORD_PREDICATE (Qchar_tablep); + DEFKEYWORD (Q_default); DEFSUBR (Fchar_table_p); DEFSUBR (Fchar_table_type_list); ＠＠ -1926,6 +1955,7 ＠＠ define_structure_type_keyword (st, Q_type, chartab_type_validate); define_structure_type_keyword (st, Q_data, chartab_data_validate); + define_structure_type_keyword (st, Q_default, chartab_default_validate); } void -- “Apart from the nine-banded armadillo, man is the only natural host of Mycobacterium leprae, although it can be grown in the footpads of mice.” -- Kumar & Clark, Clinical Medicine, summarising improbable leprosy research _______________________________________________ XEmacs-Patches mailing list XEmacs-Patches(a)xemacs.org http://calypso.tux.org/mailman/listinfo/xemacs-patches