cinelerra/filexml.h

   1 #ifndef FILEXML_H
   2 #define FILEXML_H
   3
   4 #include "sizes.h"
   5 #include <stdio.h>
   6
   7 #define MAX_TITLE 1024
   8 #define MAX_PROPERTIES 1024
   9 #define MAX_LENGTH 4096
  10
  11
  12 class XMLTag
  13 {
  14 public:
  15         XMLTag();
  16         ~XMLTag();
  17
  18         int set_delimiters(char left_delimiter, char right_delimiter);
  19         int reset_tag();     // clear all structures
  20
  21         int read_tag(char *input, long &position, long length);
  22
  23         int title_is(char *title);        // test against title and return 1 if they match
  24         char *get_title();
  25         int get_title(char *value);
  26         int test_property(char *property, char *value);
  27         char *get_property_text(int number);
  28         int get_property_int(int number);
  29         float get_property_float(int number);
  30         char *get_property(char *property);
  31         char* get_property(char *property, char *value);
  32         int32_t get_property(char *property, int32_t default_);
  33         int64_t get_property(char *property, int64_t default_);
  34 //      int get_property(char *property, int default_);
  35         float get_property(char *property, float default_);
  36         double get_property(char *property, double default_);
  37
  38         int set_title(char *text);       // set the title field
  39         int set_property(char *text, char *value);
  40         int set_property(char *text, int32_t value);
  41         int set_property(char *text, int64_t value);
  42 //      int set_property(char *text, int value);
  43         int set_property(char *text, float value);
  44         int set_property(char *text, double value);
  45         int write_tag();
  46
  47         char tag_title[MAX_TITLE];       // title of this tag
  48
  49         char *tag_properties[MAX_PROPERTIES];      // list of properties for this tag
  50         char *tag_property_values[MAX_PROPERTIES];     // values for this tag
  51
  52         int total_properties;
  53         int len;         // current size of the string
  54
  55         char string[MAX_LENGTH];
  56         char temp_string[32];       // for converting numbers
  57         char left_delimiter, right_delimiter;
  58 };
  59
  60
  61 class FileXML
  62 {
  63 public:
  64         FileXML(char left_delimiter = '<', char right_delimiter = '>');
  65         ~FileXML();
  66
  67         void dump();
  68         int terminate_string();         // append the terminal 0
  69         int append_newline();       // append a newline to string
  70         int append_tag();           // append tag object
  71         int append_text(char *text);
  72 // add generic text to the string
  73         int append_text(char *text, long len);
  74 // add generic text to the string which contains <>& characters
  75         int encode_text(char *text);
  76
  77 // Text array is dynamically allocated and deleted when FileXML is deleted
  78         char* read_text();         // read text, put it in *output, and return it
  79         int read_text_until(char *tag_end, char *output, int max_len);     // store text in output until the tag is reached
  80         int read_tag();          // read next tag from file, ignoring any text, and put it in tag
  81         // return 1 on failure
  82
  83         int write_to_file(char *filename);           // write the file to disk
  84         int write_to_file(FILE *file);           // write the file to disk
  85         int read_from_file(char *filename, int ignore_error = 0);          // read an entire file from disk
  86         int read_from_string(char *string);          // read from a string
  87
  88         int reallocate_string(long new_available);     // change size of string to accomodate new output
  89         int set_shared_string(char *shared_string, long available);    // force writing to a message buffer
  90         int rewind();
  91
  92         char *string;      // string that contains the actual file
  93         long position;    // current position in string file
  94         long length;      // length of string file for reading
  95         long available;    // possible length before reallocation
  96         int share_string;      // string is shared between this and a message buffer so don't delete
  97
  98         XMLTag tag;
  99         long output_length;
 100         char *output;       // for reading text
 101         char left_delimiter, right_delimiter;
 102         char filename[1024];  // Filename used in the last read_from_file or write_to_file
 103 };
 104
 105 #endif