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-rw-r--r--gnu/usr.bin/groff/eqn/list.cc237
1 files changed, 0 insertions, 237 deletions
diff --git a/gnu/usr.bin/groff/eqn/list.cc b/gnu/usr.bin/groff/eqn/list.cc
deleted file mode 100644
index 68d96db1e2e..00000000000
--- a/gnu/usr.bin/groff/eqn/list.cc
+++ /dev/null
@@ -1,237 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 1989, 1990, 1991, 1992 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 "eqn.h"
-#include "pbox.h"
-
-list_box *box::to_list_box()
-{
- return 0;
-}
-
-list_box *list_box::to_list_box()
-{
- return this;
-}
-
-void list_box::append(box *pp)
-{
- list_box *q = pp->to_list_box();
- if (q == 0)
- list.append(pp);
- else {
- for (int i = 0; i < q->list.len; i++) {
- list.append(q->list.p[i]);
- q->list.p[i] = 0;
- }
- q->list.len = 0;
- delete q;
- }
-}
-
-list_box::list_box(box *pp) : list(pp), sty(-1)
-{
- list_box *q = pp->to_list_box();
- if (q != 0) {
- // flatten it
- list.p[0] = q->list.p[0];
- for (int i = 1; i < q->list.len; i++) {
- list.append(q->list.p[i]);
- q->list.p[i] = 0;
- }
- q->list.len = 0;
- delete q;
- }
-}
-
-static int compute_spacing(int is_script, int left, int right)
-{
- if (left == SUPPRESS_TYPE || right == SUPPRESS_TYPE)
- return 0;
- if (left == PUNCTUATION_TYPE)
- return is_script ? 0 : thin_space;
- if (left == OPENING_TYPE || right == CLOSING_TYPE)
- return 0;
- if (right == BINARY_TYPE || left == BINARY_TYPE)
- return is_script ? 0 : medium_space;
- if (right == RELATION_TYPE) {
- if (left == RELATION_TYPE)
- return 0;
- else
- return is_script ? 0 : thick_space;
- }
- if (left == RELATION_TYPE)
- return is_script ? 0 : thick_space;
- if (right == OPERATOR_TYPE)
- return thin_space;
- if (left == INNER_TYPE || right == INNER_TYPE)
- return is_script ? 0 : thin_space;
- if (left == OPERATOR_TYPE && right == ORDINARY_TYPE)
- return thin_space;
- return 0;
-}
-
-int list_box::compute_metrics(int style)
-{
- sty = style;
- int i;
- for (i = 0; i < list.len; i++) {
- int t = list.p[i]->spacing_type;
- // 5
- if (t == BINARY_TYPE) {
- int prevt;
- if (i == 0
- || (prevt = list.p[i-1]->spacing_type) == BINARY_TYPE
- || prevt == OPERATOR_TYPE
- || prevt == RELATION_TYPE
- || prevt == OPENING_TYPE
- || prevt == PUNCTUATION_TYPE)
- list.p[i]->spacing_type = ORDINARY_TYPE;
- }
- // 7
- else if ((t == RELATION_TYPE || t == CLOSING_TYPE
- || t == PUNCTUATION_TYPE)
- && i > 0 && list.p[i-1]->spacing_type == BINARY_TYPE)
- list.p[i-1]->spacing_type = ORDINARY_TYPE;
- }
- for (i = 0; i < list.len; i++) {
- unsigned flags = 0;
- if (i - 1 >= 0 && list.p[i - 1]->right_is_italic())
- flags |= HINT_PREV_IS_ITALIC;
- if (i + 1 < list.len && list.p[i + 1]->left_is_italic())
- flags |= HINT_NEXT_IS_ITALIC;
- if (flags)
- list.p[i]->hint(flags);
- }
- is_script = (style <= SCRIPT_STYLE);
- int total_spacing = 0;
- for (i = 1; i < list.len; i++)
- total_spacing += compute_spacing(is_script, list.p[i-1]->spacing_type,
- list.p[i]->spacing_type);
- int res = 0;
- for (i = 0; i < list.len; i++)
- if (!list.p[i]->is_simple()) {
- int r = list.p[i]->compute_metrics(style);
- if (r) {
- if (res)
- error("multiple marks and lineups");
- else {
- compute_sublist_width(i);
- printf(".nr " MARK_REG " +\\n[" TEMP_REG"]\n");
- res = r;
- }
- }
- }
- printf(".nr " WIDTH_FORMAT " %dM", uid, total_spacing);
- for (i = 0; i < list.len; i++)
- if (!list.p[i]->is_simple())
- printf("+\\n[" WIDTH_FORMAT "]", list.p[i]->uid);
- printf("\n");
- printf(".nr " HEIGHT_FORMAT " 0", uid);
- for (i = 0; i < list.len; i++)
- if (!list.p[i]->is_simple())
- printf(">?\\n[" HEIGHT_FORMAT "]", list.p[i]->uid);
- printf("\n");
- printf(".nr " DEPTH_FORMAT " 0", uid);
- for (i = 0; i < list.len; i++)
- if (!list.p[i]->is_simple())
- printf(">?\\n[" DEPTH_FORMAT "]", list.p[i]->uid);
- printf("\n");
- int have_simple = 0;
- for (i = 0; i < list.len && !have_simple; i++)
- have_simple = list.p[i]->is_simple();
- if (have_simple) {
- printf(".nr " WIDTH_FORMAT " +\\w" DELIMITER_CHAR, uid);
- for (int i = 0; i < list.len; i++)
- if (list.p[i]->is_simple())
- list.p[i]->output();
- printf(DELIMITER_CHAR "\n");
- printf(".nr " HEIGHT_FORMAT " \\n[rst]>?\\n[" HEIGHT_FORMAT "]\n",
- uid, uid);
- printf(".nr " DEPTH_FORMAT " 0-\\n[rsb]>?\\n[" DEPTH_FORMAT "]\n",
- uid, uid);
- }
- return res;
-}
-
-void list_box::compute_sublist_width(int n)
-{
- int total_spacing = 0;
- int i;
- for (i = 1; i < n + 1 && i < list.len; i++)
- total_spacing += compute_spacing(is_script, list.p[i-1]->spacing_type,
- list.p[i]->spacing_type);
- printf(".nr " TEMP_REG " %dM", total_spacing);
- for (i = 0; i < n; i++)
- if (!list.p[i]->is_simple())
- printf("+\\n[" WIDTH_FORMAT "]", list.p[i]->uid);
- int have_simple = 0;
- for (i = 0; i < n && !have_simple; i++)
- have_simple = list.p[i]->is_simple();
- if (have_simple) {
- printf("+\\w" DELIMITER_CHAR);
- for (int i = 0; i < n; i++)
- if (list.p[i]->is_simple())
- list.p[i]->output();
- printf(DELIMITER_CHAR);
- }
- printf("\n");
-}
-
-void list_box::compute_subscript_kern()
-{
- // We can only call compute_subscript_kern if we have called
- // compute_metrics first.
- if (list.p[list.len-1]->is_simple())
- list.p[list.len-1]->compute_metrics(sty);
- list.p[list.len-1]->compute_subscript_kern();
- printf(".nr " SUB_KERN_FORMAT " \\n[" SUB_KERN_FORMAT "]\n",
- uid, list.p[list.len-1]->uid);
-}
-
-void list_box::output()
-{
- for (int i = 0; i < list.len; i++) {
- if (i > 0) {
- int n = compute_spacing(is_script,
- list.p[i-1]->spacing_type,
- list.p[i]->spacing_type);
- if (n > 0)
- printf("\\h'%dM'", n);
- }
- list.p[i]->output();
- }
-}
-
-void list_box::handle_char_type(int st, int ft)
-{
- for (int i = 0; i < list.len; i++)
- list.p[i]->handle_char_type(st, ft);
-}
-
-void list_box::debug_print()
-{
- list.list_debug_print(" ");
-}
-
-void list_box::check_tabs(int level)
-{
- list.list_check_tabs(level);
-}
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