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Sat Jun 18 18:36:40 2011 UTC (13 years, 9 months ago) by amb
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Sat Jun 18 18:36:40 2011 UTC (13 years, 9 months ago) by amb
File MIME type: text/x-chdr
File size: 4273 byte(s)
Don't use the flex yylineno but keep track with an unsigned long long line counter instead (if there are more than 2^31 nodes then there are more than 2^31 lines as well).
| 1 | /*************************************** |
| 2 | A simple XML parser |
| 3 | |
| 4 | Part of the Routino routing software. |
| 5 | ******************/ /****************** |
| 6 | This file Copyright 2010-2011 Andrew M. Bishop |
| 7 | |
| 8 | This program is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU Affero General Public License as published by |
| 10 | the Free Software Foundation, either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU Affero General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU Affero General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | ***************************************/ |
| 21 | |
| 22 | |
| 23 | #ifndef XMLPARSE_H |
| 24 | #define XMLPARSE_H /*+ To stop multiple inclusions. +*/ |
| 25 | |
| 26 | #include <stdio.h> |
| 27 | |
| 28 | |
| 29 | /*+ The maximum number of attributes per tag. +*/ |
| 30 | #define XMLPARSE_MAX_ATTRS 16 |
| 31 | |
| 32 | /*+ The maximum number of subtags per tag. +*/ |
| 33 | #define XMLPARSE_MAX_SUBTAGS 16 |
| 34 | |
| 35 | /*+ A flag to indicate the start and/or end of a tag. +*/ |
| 36 | #define XMLPARSE_TAG_START 1 |
| 37 | #define XMLPARSE_TAG_END 2 |
| 38 | |
| 39 | |
| 40 | /*+ A forward definition of the xmltag +*/ |
| 41 | typedef struct _xmltag xmltag; |
| 42 | |
| 43 | |
| 44 | /*+ A structure to hold the definition of a tag. +*/ |
| 45 | struct _xmltag |
| 46 | { |
| 47 | char *name; /*+ The name of the tag. +*/ |
| 48 | |
| 49 | int nattributes; /*+ The number of valid attributes for the tag. +*/ |
| 50 | char *attributes[XMLPARSE_MAX_ATTRS]; /*+ The valid attributes for the tag. +*/ |
| 51 | |
| 52 | int (*callback)(); /*+ The callback function when the tag is seen. +*/ |
| 53 | |
| 54 | xmltag *subtags[XMLPARSE_MAX_SUBTAGS]; /*+ The list of valid tags contained within this one (null terminated). +*/ |
| 55 | }; |
| 56 | |
| 57 | |
| 58 | /* XML Parser options */ |
| 59 | |
| 60 | #define XMLPARSE_UNKNOWN_ATTRIBUTES 0x0003 |
| 61 | #define XMLPARSE_UNKNOWN_ATTR_ERROR 0x0000 /* Flag an error and exit. */ |
| 62 | #define XMLPARSE_UNKNOWN_ATTR_ERRNONAME 0x0001 /* Flag an error and exit unless a namespace is specified. */ |
| 63 | #define XMLPARSE_UNKNOWN_ATTR_WARN 0x0002 /* Warn about the problem and continue. */ |
| 64 | #define XMLPARSE_UNKNOWN_ATTR_IGNORE 0x0003 /* Ignore the potential problem. */ |
| 65 | |
| 66 | #define XMLPARSE_RETURN_ATTR_ENCODED 0x0004 /* Return the XML attribute strings without decoding them. */ |
| 67 | |
| 68 | |
| 69 | /* XML parser functions */ |
| 70 | |
| 71 | int ParseXML(FILE *file,xmltag **tags,int options); |
| 72 | |
| 73 | unsigned long long ParseXML_LineNumber(void); |
| 74 | |
| 75 | char *ParseXML_Decode_Entity_Ref(const char *string); |
| 76 | char *ParseXML_Decode_Char_Ref(const char *string); |
| 77 | char *ParseXML_Encode_Safe_XML(const char *string); |
| 78 | |
| 79 | int ParseXML_IsInteger(const char *string); |
| 80 | int ParseXML_IsFloating(const char *string); |
| 81 | |
| 82 | /* Macros to simplify the callback functions */ |
| 83 | |
| 84 | #define XMLPARSE_MESSAGE(tag,message) \ |
| 85 | do \ |
| 86 | { \ |
| 87 | fprintf(stderr,"XML Parser: Error on line %llu: " message " in <%s> tag.\n",ParseXML_LineNumber(),tag); \ |
| 88 | return(1); \ |
| 89 | } \ |
| 90 | while(0) |
| 91 | |
| 92 | #define XMLPARSE_INVALID(tag,attribute) \ |
| 93 | do \ |
| 94 | { \ |
| 95 | fprintf(stderr,"XML Parser: Error on line %llu: Invalid value for '" #attribute "' attribute in <%s> tag.\n",ParseXML_LineNumber(),tag); \ |
| 96 | return(1); \ |
| 97 | } \ |
| 98 | while(0) |
| 99 | |
| 100 | #define XMLPARSE_ASSERT_STRING(tag,attribute) \ |
| 101 | do \ |
| 102 | { \ |
| 103 | if(!attribute) \ |
| 104 | { \ |
| 105 | fprintf(stderr,"XML Parser: Error on line %llu: '" #attribute "' attribute must be specified in <%s> tag.\n",ParseXML_LineNumber(),tag); \ |
| 106 | return(1); \ |
| 107 | } \ |
| 108 | } \ |
| 109 | while(0) |
| 110 | |
| 111 | #define XMLPARSE_ASSERT_INTEGER(tag,attribute) \ |
| 112 | do \ |
| 113 | { \ |
| 114 | if(!attribute || !*attribute || !ParseXML_IsInteger(attribute)) \ |
| 115 | { \ |
| 116 | fprintf(stderr,"XML Parser: Error on line %llu: '" #attribute "' attribute must be a integer in <%s> tag.\n",ParseXML_LineNumber(),tag); \ |
| 117 | return(1); \ |
| 118 | } \ |
| 119 | } \ |
| 120 | while(0) |
| 121 | |
| 122 | #define XMLPARSE_ASSERT_FLOATING(tag,attribute) \ |
| 123 | do \ |
| 124 | { \ |
| 125 | if(!attribute || !*attribute || !ParseXML_IsFloating(attribute)) \ |
| 126 | { \ |
| 127 | fprintf(stderr,"XML Parser: Error on line %llu: '" #attribute "' attribute must be a number in <%s> tag.\n",ParseXML_LineNumber(),tag); \ |
| 128 | return(1); \ |
| 129 | } \ |
| 130 | } \ |
| 131 | while(0) |
| 132 | |
| 133 | |
| 134 | #endif /* XMLPARSE_H */ |
Properties
| Name | Value |
|---|---|
| cvs:description | A simple generic XML parser (header file). |