From 074359b166c25db261d940445afb7211944e0c00 Mon Sep 17 00:00:00 2001 From: Patrick McDermott Date: Mon, 15 Mar 2021 14:35:59 -0400 Subject: src/xml.[ch]: New files Copied from boukengine. --- diff --git a/src/local.mk b/src/local.mk index 1907214..9e51a3d 100644 --- a/src/local.mk +++ b/src/local.mk @@ -1,4 +1,6 @@ dodge_balls_SOURCES += \ %reldir%/main.c \ %reldir%/output.c \ - %reldir%/output.h + %reldir%/output.h \ + %reldir%/xml.c \ + %reldir%/xml.h diff --git a/src/xml.c b/src/xml.c new file mode 100644 index 0000000..c28fbc4 --- /dev/null +++ b/src/xml.c @@ -0,0 +1,169 @@ +/* + * Copyright (C) 2013 P. J. McDermott + * + * This file is part of Dodge Balls + * + * Dodge Balls 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. + * + * Dodge Balls 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 Dodge Balls. If not, see . + */ + +#include +#include +#include +#include +#include +#include "xml.h" +#include "logging.h" + +struct xml_node { + void *data; + XML_StartElementHandler start; + XML_EndElementHandler end; + XML_CharacterDataHandler charhndl; + struct xml_node *parent; +}; + +int +xml_check_tag(const char *found, const char *expected) +{ + return strcmp(found, expected) == 0; +} + +void +xml_unexpected_start_tag(XML_Parser p, const char *found, const char *expected) +{ + warn("Found \"%s\" start tag where expected one of \"%s\" in map", + found, expected); + XML_StopParser(p, XML_FALSE); +} + +void +xml_unexpected_end_tag(XML_Parser p, const char *found, const char *expected) +{ + warn("Found \"%s\" end tag where expected one of \"%s\" in map", + found, expected); + XML_StopParser(p, XML_FALSE); +} + +void +xml_get_uint32_attr(XML_Parser p, const char **attr, const char *name, + Uint32 *dest, int req) +{ + for (; attr[0] != NULL; attr += 2) { + if (strcmp(attr[0], name) == 0) { + if (sscanf(attr[1], "%" PRIu32, dest) == 1) { + return; + } else if (req) { + warn("Invalid \"%s\" attribute value", name); + XML_StopParser(p, XML_FALSE); + } + } + } + if (req) { + warn("Required attribute \"%s\" not found", name); + XML_StopParser(p, XML_FALSE); + } +} + +void +xml_get_int_attr(XML_Parser p, const char **attr, const char *name, + int *dest, int req) +{ + for (; attr[0] != NULL; attr += 2) { + if (strcmp(attr[0], name) == 0) { + if (sscanf(attr[1], "%d", dest) == 1) { + return; + } else if (req) { + warn("Invalid \"%s\" attribute value", name); + XML_StopParser(p, XML_FALSE); + } + } + } + if (req) { + warn("Required attribute \"%s\" not found", name); + XML_StopParser(p, XML_FALSE); + } +} + +void +xml_get_string_attr(XML_Parser p, const char **attr, const char *name, + char **dest, int req) +{ + for (; attr[0] != NULL; attr += 2) { + if (strcmp(attr[0], name) == 0) { + *dest = strdup(attr[1]); + return; + } + } + if (req) { + warn("Required attribute \"%s\" not found", name); + XML_StopParser(p, XML_FALSE); + } +} + +void +xml_node_push(XML_Parser p, void *data, + XML_StartElementHandler start, XML_EndElementHandler end, + XML_CharacterDataHandler charhndl) +{ + struct xml_node *n; + + n = malloc(sizeof(*n)); + if (n == NULL) { + return; + } + n->data = data; + n->start = start; + n->end = end; + n->charhndl = charhndl; + n->parent = (struct xml_node *) XML_GetUserData(p); + XML_SetUserData(p, n); + XML_SetStartElementHandler(p, n->start); + XML_SetEndElementHandler(p, n->end); + XML_SetCharacterDataHandler(p, n->charhndl); +} + +void * +xml_node_pop(XML_Parser p) +{ + struct xml_node *n; + void *data; + + n = (struct xml_node *) XML_GetUserData(p); + data = n->data; + XML_SetUserData(p, n->parent); + free(n); + + n = (struct xml_node *) XML_GetUserData(p); + if (n == NULL) { + XML_SetStartElementHandler(p, NULL); + XML_SetEndElementHandler(p, NULL); + XML_SetCharacterDataHandler(p, NULL); + } else { + XML_SetStartElementHandler(p, n->start); + XML_SetEndElementHandler(p, n->end); + XML_SetCharacterDataHandler(p, n->charhndl); + } + + return data; +} + +void * +xml_node_peek(XML_Parser p) +{ + struct xml_node *n; + + n = (struct xml_node *) XML_GetUserData(p); + + return n->data; +} diff --git a/src/xml.h b/src/xml.h new file mode 100644 index 0000000..519ca2d --- /dev/null +++ b/src/xml.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2013 P. J. McDermott + * + * This file is part of Dodge Balls + * + * Dodge Balls 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. + * + * Dodge Balls 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 Dodge Balls. If not, see . + */ + +#ifndef XML_H +#define XML_H + +#include +#include + +int xml_check_tag(const char *found, const char *expected); +void xml_unexpected_start_tag(XML_Parser p, const char *found, + const char *expected); +void xml_unexpected_end_tag(XML_Parser p, const char *found, + const char *expected); +void xml_get_int_attr(XML_Parser p, const char **attr, const char *name, + int *dest, int req); +void xml_get_uint32_attr(XML_Parser p, const char **attr, const char *name, + Uint32 *dest, int req); +void xml_get_string_attr(XML_Parser p, const char **attr, const char *name, + char **dest, int req); +void xml_node_push(XML_Parser p, void *data, + XML_StartElementHandler start, XML_EndElementHandler end, + XML_CharacterDataHandler charhndl); +void *xml_node_pop(XML_Parser p); +void *xml_node_peek(XML_Parser p); + +#endif -- cgit v0.9.1