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-rw-r--r--contrib/groff/src/preproc/refer/command.cc809
1 files changed, 0 insertions, 809 deletions
diff --git a/contrib/groff/src/preproc/refer/command.cc b/contrib/groff/src/preproc/refer/command.cc
deleted file mode 100644
index a7c6bfb89381..000000000000
--- a/contrib/groff/src/preproc/refer/command.cc
+++ /dev/null
@@ -1,809 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 1989, 1990, 1991, 1992, 2001, 2002
- Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.com)
-
-This file is part of groff.
-
-groff 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 2, or (at your option) any later
-version.
-
-groff 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 groff; see the file COPYING. If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "refer.h"
-#include "refid.h"
-#include "search.h"
-#include "command.h"
-
-cset cs_field_name = csalpha;
-
-class input_item {
- input_item *next;
- char *filename;
- int first_lineno;
- string buffer;
- const char *ptr;
- const char *end;
-public:
- input_item(string &, const char *, int = 1);
- ~input_item();
- int get_char();
- int peek_char();
- void skip_char();
- int get_location(const char **, int *);
-
- friend class input_stack;
-};
-
-input_item::input_item(string &s, const char *fn, int ln)
-: filename(strsave(fn)), first_lineno(ln)
-{
- buffer.move(s);
- ptr = buffer.contents();
- end = ptr + buffer.length();
-}
-
-input_item::~input_item()
-{
- a_delete filename;
-}
-
-inline int input_item::peek_char()
-{
- if (ptr >= end)
- return EOF;
- else
- return (unsigned char)*ptr;
-}
-
-inline int input_item::get_char()
-{
- if (ptr >= end)
- return EOF;
- else
- return (unsigned char)*ptr++;
-}
-
-inline void input_item::skip_char()
-{
- ptr++;
-}
-
-int input_item::get_location(const char **filenamep, int *linenop)
-{
- *filenamep = filename;
- if (ptr == buffer.contents())
- *linenop = first_lineno;
- else {
- int ln = first_lineno;
- const char *e = ptr - 1;
- for (const char *p = buffer.contents(); p < e; p++)
- if (*p == '\n')
- ln++;
- *linenop = ln;
- }
- return 1;
-}
-
-class input_stack {
- static input_item *top;
-public:
- static void init();
- static int get_char();
- static int peek_char();
- static void skip_char() { top->skip_char(); }
- static void push_file(const char *);
- static void push_string(string &, const char *, int);
- static void error(const char *format,
- const errarg &arg1 = empty_errarg,
- const errarg &arg2 = empty_errarg,
- const errarg &arg3 = empty_errarg);
-};
-
-input_item *input_stack::top = 0;
-
-void input_stack::init()
-{
- while (top) {
- input_item *tem = top;
- top = top->next;
- delete tem;
- }
-}
-
-int input_stack::get_char()
-{
- while (top) {
- int c = top->get_char();
- if (c >= 0)
- return c;
- input_item *tem = top;
- top = top->next;
- delete tem;
- }
- return -1;
-}
-
-int input_stack::peek_char()
-{
- while (top) {
- int c = top->peek_char();
- if (c >= 0)
- return c;
- input_item *tem = top;
- top = top->next;
- delete tem;
- }
- return -1;
-}
-
-void input_stack::push_file(const char *fn)
-{
- FILE *fp;
- if (strcmp(fn, "-") == 0) {
- fp = stdin;
- fn = "<standard input>";
- }
- else {
- errno = 0;
- fp = fopen(fn, "r");
- if (fp == 0) {
- error("can't open `%1': %2", fn, strerror(errno));
- return;
- }
- }
- string buf;
- int bol = 1;
- int lineno = 1;
- for (;;) {
- int c = getc(fp);
- if (bol && c == '.') {
- // replace lines beginning with .R1 or .R2 with a blank line
- c = getc(fp);
- if (c == 'R') {
- c = getc(fp);
- if (c == '1' || c == '2') {
- int cc = c;
- c = getc(fp);
- if (compatible_flag || c == ' ' || c == '\n' || c == EOF) {
- while (c != '\n' && c != EOF)
- c = getc(fp);
- }
- else {
- buf += '.';
- buf += 'R';
- buf += cc;
- }
- }
- else {
- buf += '.';
- buf += 'R';
- }
- }
- else
- buf += '.';
- }
- if (c == EOF)
- break;
- if (invalid_input_char(c))
- error_with_file_and_line(fn, lineno,
- "invalid input character code %1", int(c));
- else {
- buf += c;
- if (c == '\n') {
- bol = 1;
- lineno++;
- }
- else
- bol = 0;
- }
- }
- if (fp != stdin)
- fclose(fp);
- if (buf.length() > 0 && buf[buf.length() - 1] != '\n')
- buf += '\n';
- input_item *it = new input_item(buf, fn);
- it->next = top;
- top = it;
-}
-
-void input_stack::push_string(string &s, const char *filename, int lineno)
-{
- input_item *it = new input_item(s, filename, lineno);
- it->next = top;
- top = it;
-}
-
-void input_stack::error(const char *format, const errarg &arg1,
- const errarg &arg2, const errarg &arg3)
-{
- const char *filename;
- int lineno;
- for (input_item *it = top; it; it = it->next)
- if (it->get_location(&filename, &lineno)) {
- error_with_file_and_line(filename, lineno, format, arg1, arg2, arg3);
- return;
- }
- ::error(format, arg1, arg2, arg3);
-}
-
-void command_error(const char *format, const errarg &arg1,
- const errarg &arg2, const errarg &arg3)
-{
- input_stack::error(format, arg1, arg2, arg3);
-}
-
-// # not recognized in ""
-// \<newline> is recognized in ""
-// # does not conceal newline
-// if missing closing quote, word extends to end of line
-// no special treatment of \ other than before newline
-// \<newline> not recognized after #
-// ; allowed as alternative to newline
-// ; not recognized in ""
-// don't clear word_buffer; just append on
-// return -1 for EOF, 0 for newline, 1 for word
-
-int get_word(string &word_buffer)
-{
- int c = input_stack::get_char();
- for (;;) {
- if (c == '#') {
- do {
- c = input_stack::get_char();
- } while (c != '\n' && c != EOF);
- break;
- }
- if (c == '\\' && input_stack::peek_char() == '\n')
- input_stack::skip_char();
- else if (c != ' ' && c != '\t')
- break;
- c = input_stack::get_char();
- }
- if (c == EOF)
- return -1;
- if (c == '\n' || c == ';')
- return 0;
- if (c == '"') {
- for (;;) {
- c = input_stack::peek_char();
- if (c == EOF || c == '\n')
- break;
- input_stack::skip_char();
- if (c == '"') {
- int d = input_stack::peek_char();
- if (d == '"')
- input_stack::skip_char();
- else
- break;
- }
- else if (c == '\\') {
- int d = input_stack::peek_char();
- if (d == '\n')
- input_stack::skip_char();
- else
- word_buffer += '\\';
- }
- else
- word_buffer += c;
- }
- return 1;
- }
- word_buffer += c;
- for (;;) {
- c = input_stack::peek_char();
- if (c == ' ' || c == '\t' || c == '\n' || c == '#' || c == ';')
- break;
- input_stack::skip_char();
- if (c == '\\') {
- int d = input_stack::peek_char();
- if (d == '\n')
- input_stack::skip_char();
- else
- word_buffer += '\\';
- }
- else
- word_buffer += c;
- }
- return 1;
-}
-
-union argument {
- const char *s;
- int n;
-};
-
-// This is for debugging.
-
-static void echo_command(int argc, argument *argv)
-{
- for (int i = 0; i < argc; i++)
- fprintf(stderr, "%s\n", argv[i].s);
-}
-
-static void include_command(int argc, argument *argv)
-{
- assert(argc == 1);
- input_stack::push_file(argv[0].s);
-}
-
-static void capitalize_command(int argc, argument *argv)
-{
- if (argc > 0)
- capitalize_fields = argv[0].s;
- else
- capitalize_fields.clear();
-}
-
-static void accumulate_command(int, argument *)
-{
- accumulate = 1;
-}
-
-static void no_accumulate_command(int, argument *)
-{
- accumulate = 0;
-}
-
-static void move_punctuation_command(int, argument *)
-{
- move_punctuation = 1;
-}
-
-static void no_move_punctuation_command(int, argument *)
-{
- move_punctuation = 0;
-}
-
-static void sort_command(int argc, argument *argv)
-{
- if (argc == 0)
- sort_fields = "AD";
- else
- sort_fields = argv[0].s;
- accumulate = 1;
-}
-
-static void no_sort_command(int, argument *)
-{
- sort_fields.clear();
-}
-
-static void articles_command(int argc, argument *argv)
-{
- articles.clear();
- int i;
- for (i = 0; i < argc; i++) {
- articles += argv[i].s;
- articles += '\0';
- }
- int len = articles.length();
- for (i = 0; i < len; i++)
- articles[i] = cmlower(articles[i]);
-}
-
-static void database_command(int argc, argument *argv)
-{
- for (int i = 0; i < argc; i++)
- database_list.add_file(argv[i].s);
-}
-
-static void default_database_command(int, argument *)
-{
- search_default = 1;
-}
-
-static void no_default_database_command(int, argument *)
-{
- search_default = 0;
-}
-
-static void bibliography_command(int argc, argument *argv)
-{
- const char *saved_filename = current_filename;
- int saved_lineno = current_lineno;
- int saved_label_in_text = label_in_text;
- label_in_text = 0;
- if (!accumulate)
- fputs(".]<\n", stdout);
- for (int i = 0; i < argc; i++)
- do_bib(argv[i].s);
- if (accumulate)
- output_references();
- else
- fputs(".]>\n", stdout);
- current_filename = saved_filename;
- current_lineno = saved_lineno;
- label_in_text = saved_label_in_text;
-}
-
-static void annotate_command(int argc, argument *argv)
-{
- if (argc > 0)
- annotation_field = argv[0].s[0];
- else
- annotation_field = 'X';
- if (argc == 2)
- annotation_macro = argv[1].s;
- else
- annotation_macro = "AP";
-}
-
-static void no_annotate_command(int, argument *)
-{
- annotation_macro.clear();
- annotation_field = -1;
-}
-
-static void reverse_command(int, argument *argv)
-{
- reverse_fields = argv[0].s;
-}
-
-static void no_reverse_command(int, argument *)
-{
- reverse_fields.clear();
-}
-
-static void abbreviate_command(int argc, argument *argv)
-{
- abbreviate_fields = argv[0].s;
- period_before_initial = argc > 1 ? argv[1].s : ". ";
- period_before_last_name = argc > 2 ? argv[2].s : ". ";
- period_before_other = argc > 3 ? argv[3].s : ". ";
- period_before_hyphen = argc > 4 ? argv[4].s : ".";
-}
-
-static void no_abbreviate_command(int, argument *)
-{
- abbreviate_fields.clear();
-}
-
-string search_ignore_fields;
-
-static void search_ignore_command(int argc, argument *argv)
-{
- if (argc > 0)
- search_ignore_fields = argv[0].s;
- else
- search_ignore_fields = "XYZ";
- search_ignore_fields += '\0';
- linear_ignore_fields = search_ignore_fields.contents();
-}
-
-static void no_search_ignore_command(int, argument *)
-{
- linear_ignore_fields = "";
-}
-
-static void search_truncate_command(int argc, argument *argv)
-{
- if (argc > 0)
- linear_truncate_len = argv[0].n;
- else
- linear_truncate_len = 6;
-}
-
-static void no_search_truncate_command(int, argument *)
-{
- linear_truncate_len = -1;
-}
-
-static void discard_command(int argc, argument *argv)
-{
- if (argc == 0)
- discard_fields = "XYZ";
- else
- discard_fields = argv[0].s;
- accumulate = 1;
-}
-
-static void no_discard_command(int, argument *)
-{
- discard_fields.clear();
-}
-
-static void label_command(int, argument *argv)
-{
- set_label_spec(argv[0].s);
-}
-
-static void abbreviate_label_ranges_command(int argc, argument *argv)
-{
- abbreviate_label_ranges = 1;
- label_range_indicator = argc > 0 ? argv[0].s : "-";
-}
-
-static void no_abbreviate_label_ranges_command(int, argument *)
-{
- abbreviate_label_ranges = 0;
-}
-
-static void label_in_reference_command(int, argument *)
-{
- label_in_reference = 1;
-}
-
-static void no_label_in_reference_command(int, argument *)
-{
- label_in_reference = 0;
-}
-
-static void label_in_text_command(int, argument *)
-{
- label_in_text = 1;
-}
-
-static void no_label_in_text_command(int, argument *)
-{
- label_in_text = 0;
-}
-
-static void sort_adjacent_labels_command(int, argument *)
-{
- sort_adjacent_labels = 1;
-}
-
-static void no_sort_adjacent_labels_command(int, argument *)
-{
- sort_adjacent_labels = 0;
-}
-
-static void date_as_label_command(int argc, argument *argv)
-{
- if (set_date_label_spec(argc > 0 ? argv[0].s : "D%a*"))
- date_as_label = 1;
-}
-
-static void no_date_as_label_command(int, argument *)
-{
- date_as_label = 0;
-}
-
-static void short_label_command(int, argument *argv)
-{
- if (set_short_label_spec(argv[0].s))
- short_label_flag = 1;
-}
-
-static void no_short_label_command(int, argument *)
-{
- short_label_flag = 0;
-}
-
-static void compatible_command(int, argument *)
-{
- compatible_flag = 1;
-}
-
-static void no_compatible_command(int, argument *)
-{
- compatible_flag = 0;
-}
-
-static void join_authors_command(int argc, argument *argv)
-{
- join_authors_exactly_two = argv[0].s;
- join_authors_default = argc > 1 ? argv[1].s : argv[0].s;
- join_authors_last_two = argc == 3 ? argv[2].s : argv[0].s;
-}
-
-static void bracket_label_command(int, argument *argv)
-{
- pre_label = argv[0].s;
- post_label = argv[1].s;
- sep_label = argv[2].s;
-}
-
-static void separate_label_second_parts_command(int, argument *argv)
-{
- separate_label_second_parts = argv[0].s;
-}
-
-static void et_al_command(int argc, argument *argv)
-{
- et_al = argv[0].s;
- et_al_min_elide = argv[1].n;
- if (et_al_min_elide < 1)
- et_al_min_elide = 1;
- et_al_min_total = argc >= 3 ? argv[2].n : 0;
-}
-
-static void no_et_al_command(int, argument *)
-{
- et_al.clear();
- et_al_min_elide = 0;
-}
-
-typedef void (*command_t)(int, argument *);
-
-/* arg_types is a string describing the numbers and types of arguments.
-s means a string, i means an integer, f is a list of fields, F is
-a single field,
-? means that the previous argument is optional, * means that the
-previous argument can occur any number of times. */
-
-struct {
- const char *name;
- command_t func;
- const char *arg_types;
-} command_table[] = {
- { "include", include_command, "s" },
- { "echo", echo_command, "s*" },
- { "capitalize", capitalize_command, "f?" },
- { "accumulate", accumulate_command, "" },
- { "no-accumulate", no_accumulate_command, "" },
- { "move-punctuation", move_punctuation_command, "" },
- { "no-move-punctuation", no_move_punctuation_command, "" },
- { "sort", sort_command, "s?" },
- { "no-sort", no_sort_command, "" },
- { "articles", articles_command, "s*" },
- { "database", database_command, "ss*" },
- { "default-database", default_database_command, "" },
- { "no-default-database", no_default_database_command, "" },
- { "bibliography", bibliography_command, "ss*" },
- { "annotate", annotate_command, "F?s?" },
- { "no-annotate", no_annotate_command, "" },
- { "reverse", reverse_command, "s" },
- { "no-reverse", no_reverse_command, "" },
- { "abbreviate", abbreviate_command, "ss?s?s?s?" },
- { "no-abbreviate", no_abbreviate_command, "" },
- { "search-ignore", search_ignore_command, "f?" },
- { "no-search-ignore", no_search_ignore_command, "" },
- { "search-truncate", search_truncate_command, "i?" },
- { "no-search-truncate", no_search_truncate_command, "" },
- { "discard", discard_command, "f?" },
- { "no-discard", no_discard_command, "" },
- { "label", label_command, "s" },
- { "abbreviate-label-ranges", abbreviate_label_ranges_command, "s?" },
- { "no-abbreviate-label-ranges", no_abbreviate_label_ranges_command, "" },
- { "label-in-reference", label_in_reference_command, "" },
- { "no-label-in-reference", no_label_in_reference_command, "" },
- { "label-in-text", label_in_text_command, "" },
- { "no-label-in-text", no_label_in_text_command, "" },
- { "sort-adjacent-labels", sort_adjacent_labels_command, "" },
- { "no-sort-adjacent-labels", no_sort_adjacent_labels_command, "" },
- { "date-as-label", date_as_label_command, "s?" },
- { "no-date-as-label", no_date_as_label_command, "" },
- { "short-label", short_label_command, "s" },
- { "no-short-label", no_short_label_command, "" },
- { "compatible", compatible_command, "" },
- { "no-compatible", no_compatible_command, "" },
- { "join-authors", join_authors_command, "sss?" },
- { "bracket-label", bracket_label_command, "sss" },
- { "separate-label-second-parts", separate_label_second_parts_command, "s" },
- { "et-al", et_al_command, "sii?" },
- { "no-et-al", no_et_al_command, "" },
-};
-
-static int check_args(const char *types, const char *name,
- int argc, argument *argv)
-{
- int argno = 0;
- while (*types) {
- if (argc == 0) {
- if (types[1] == '?')
- break;
- else if (types[1] == '*') {
- assert(types[2] == '\0');
- break;
- }
- else {
- input_stack::error("missing argument for command `%1'", name);
- return 0;
- }
- }
- switch (*types) {
- case 's':
- break;
- case 'i':
- {
- char *ptr;
- long n = strtol(argv->s, &ptr, 10);
- if ((n == 0 && ptr == argv->s)
- || *ptr != '\0') {
- input_stack::error("argument %1 for command `%2' must be an integer",
- argno + 1, name);
- return 0;
- }
- argv->n = (int)n;
- break;
- }
- case 'f':
- {
- for (const char *ptr = argv->s; *ptr != '\0'; ptr++)
- if (!cs_field_name(*ptr)) {
- input_stack::error("argument %1 for command `%2' must be a list of fields",
- argno + 1, name);
- return 0;
- }
- break;
- }
- case 'F':
- if (argv->s[0] == '\0' || argv->s[1] != '\0'
- || !cs_field_name(argv->s[0])) {
- input_stack::error("argument %1 for command `%2' must be a field name",
- argno + 1, name);
- return 0;
- }
- break;
- default:
- assert(0);
- }
- if (types[1] == '?')
- types += 2;
- else if (types[1] != '*')
- types += 1;
- --argc;
- ++argv;
- ++argno;
- }
- if (argc > 0) {
- input_stack::error("too many arguments for command `%1'", name);
- return 0;
- }
- return 1;
-}
-
-static void execute_command(const char *name, int argc, argument *argv)
-{
- for (unsigned int i = 0;
- i < sizeof(command_table)/sizeof(command_table[0]); i++)
- if (strcmp(name, command_table[i].name) == 0) {
- if (check_args(command_table[i].arg_types, name, argc, argv))
- (*command_table[i].func)(argc, argv);
- return;
- }
- input_stack::error("unknown command `%1'", name);
-}
-
-static void command_loop()
-{
- string command;
- for (;;) {
- command.clear();
- int res = get_word(command);
- if (res != 1) {
- if (res == 0)
- continue;
- break;
- }
- int argc = 0;
- command += '\0';
- while ((res = get_word(command)) == 1) {
- argc++;
- command += '\0';
- }
- argument *argv = new argument[argc];
- const char *ptr = command.contents();
- for (int i = 0; i < argc; i++)
- argv[i].s = ptr = strchr(ptr, '\0') + 1;
- execute_command(command.contents(), argc, argv);
- a_delete argv;
- if (res == -1)
- break;
- }
-}
-
-void process_commands(const char *file)
-{
- input_stack::init();
- input_stack::push_file(file);
- command_loop();
-}
-
-void process_commands(string &s, const char *file, int lineno)
-{
- input_stack::init();
- input_stack::push_string(s, file, lineno);
- command_loop();
-}
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