/* Copyright 2010-2019 Free Software Foundation, Inc. This program 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. This program 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 this program. If not, see . */ #include #include #include "parser.h" static enum context *stack; static size_t top; /* One above last pushed context. */ static size_t space; void reset_context_stack (void) { top = 0; } void push_context (enum context c) { if (top >= space) { stack = realloc (stack, (space += 5) * sizeof (enum context)); } debug (">>>>>>>>>>>>>>>>>PUSHING STACK AT %d -- %s", top, c == ct_preformatted ? "preformatted" : c == ct_line ? "line" : c == ct_def ? "def" : c == ct_menu ? "menu" : ""); stack[top++] = c; } enum context pop_context () { if (top == 0) fatal ("context stack empty"); debug (">>>>>>>>>>>>>POPPING STACK AT %d", top - 1); return stack[--top]; } enum context current_context (void) { if (top == 0) return ct_NONE; return stack[top - 1]; } /* The valid regions are 'titlepage', 'copying', and 'documentdescription'. This stack isn't used that much. */ static ELEMENT **region_stack; static size_t region_top; /* One above last pushed region. */ static size_t region_space; void reset_region_stack (void) { region_top = 0; } void push_region (ELEMENT *e) { if (region_top >= region_space) { region_stack = realloc (region_stack, (region_space += 5) * sizeof (*region_stack)); } debug (">>>>>>>>>>>>>>>>>PUSHING REGION STACK AT %d", region_top); region_stack[region_top++] = e; } ELEMENT * pop_region () { if (region_top == 0) fatal ("region stack empty"); debug (">>>>>>>>>>>>>POPPING REGION STACK AT %d", region_top - 1); return region_stack[--region_top]; } enum command_id current_region_cmd (void) { if (region_top == 0) return CM_NONE; return region_stack[region_top - 1]->cmd; } ELEMENT * current_region (void) { if (region_top == 0) return 0; return region_stack[region_top - 1]; }