diff options
Diffstat (limited to 'eqn.c')
| -rw-r--r-- | eqn.c | 31 |
1 files changed, 20 insertions, 11 deletions
@@ -1,4 +1,4 @@ -/* $Id: eqn.c,v 1.73 2017/07/05 15:03:27 schwarze Exp $ */ +/* $Id: eqn.c,v 1.74 2017/07/06 00:19:54 schwarze Exp $ */ /* * Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org> @@ -819,6 +819,8 @@ next_tok: ep->gsize = size; break; } + while (parent->args == parent->expectargs) + parent = parent->parent; parent = eqn_box_alloc(ep, parent); parent->type = EQN_LIST; parent->expectargs = 1; @@ -840,13 +842,25 @@ next_tok: cur->type = EQN_TEXT; cur->text = mandoc_strdup(""); } - /* Handle the "subsup" and "fromto" positions. */ - if (EQN_TOK_SUP == tok && parent->pos == EQNPOS_SUB) { + while (parent->expectargs == 1 && parent->args == 1) + parent = parent->parent; + if (tok == EQN_TOK_FROM || tok == EQN_TOK_TO) { + for (cur = parent; cur != NULL; cur = cur->parent) + if (cur->pos == EQNPOS_SUB || + cur->pos == EQNPOS_SUP || + cur->pos == EQNPOS_SUBSUP || + cur->pos == EQNPOS_SQRT || + cur->pos == EQNPOS_OVER) + break; + if (cur != NULL) + parent = cur->parent; + } + if (tok == EQN_TOK_SUP && parent->pos == EQNPOS_SUB) { parent->expectargs = 3; parent->pos = EQNPOS_SUBSUP; break; } - if (EQN_TOK_TO == tok && parent->pos == EQNPOS_FROM) { + if (tok == EQN_TOK_TO && parent->pos == EQNPOS_FROM) { parent->expectargs = 3; parent->pos = EQNPOS_FROMTO; break; @@ -895,6 +909,8 @@ next_tok: cur->type = EQN_TEXT; cur->text = mandoc_strdup(""); } + while (parent->args == parent->expectargs) + parent = parent->parent; while (EQN_SUBEXPR == parent->type) parent = parent->parent; parent = eqn_box_makebinary(ep, EQNPOS_OVER, parent); @@ -1099,13 +1115,6 @@ next_tok: parent = split->parent; break; } - /* - * Post-process list status. - */ - while (parent->type == EQN_LIST && - parent->expectargs == 1 && - parent->args == 1) - parent = parent->parent; break; default: abort(); |