diff options
Diffstat (limited to 'src/ctemplates.h')
| -rw-r--r-- | src/ctemplates.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/src/ctemplates.h b/src/ctemplates.h new file mode 100644 index 0000000..658a9f3 --- /dev/null +++ b/src/ctemplates.h @@ -0,0 +1,208 @@ +/* + * C TemplateS Library 0.1 - + * Forked from C Template Library 1.0 by Stephen C. Losen. + * + * Copyright 2017 Alexander M. Pickering Distributed under the terms + * of the GNU General Public License (GPL) + */ + +#ifndef _CTEMPLATE_H +#define _CTEMPLATE_H + +#include "fbuf.h" +#include "kmp.h" +#include "hashmap.h" + +#define MAX_TEMPLATE_LENGTH 2147384647 + +/* +typedef struct TMPL_varlist TMPL_varlist; +typedef struct TMPL_loop TMPL_loop; +typedef struct TMPL_fmtlist TMPL_fmtlist; +typedef struct TMPL_fmtlists TMPL_fmtlists; +*/ +#define TAG_NULL_TEXT "" +#define TAG_TEXT_TEXT "" +#define TAG_VAR_TEXT "TMPL_VAR" +#define TAG_IF_TEXT "TMPL_IF" +#define TAG_ELSEIF_TEXT "TMPL_ELSEIF" +#define TAG_ELSE_TEXT "TMPL_ELSE" +#define TAG_LOOP_TEXT "TMPL_LOOP" +#define TAG_BREAK_TEXT "TMPL_BREAK" +#define TAG_CONTINUE_TEXT "TMPL_CONTINUE" +#define TAG_END_TEXT "TMPL_END" + +#define ATTRIBUTE_VARNAME "name" +#define ATTRIBUTE_DEFAULT "default" +#define ATTRIBUTE_VALUE "value" + +#define ERRBUF_HINTLEN 50 + +#define SIZEOF(x) (sizeof(x) / sizeof(x[0])) + +#define TAG_NULL_LENGTH 0 +#define TAG_TEXT_LENGTH 0 +#define TAG_VAR_LENGTH SIZEOF(TAG_VAR_TEXT) +#define TAG_IF_LENGTH SIZEOF(TAG_IF_TEXT) +#define TAG_ELSEIF_LENGTH SIZEOF(TAG_ELSEIF_TEXT) +#define TAG_ELSE_LENGTH SIZEOF(TAG_ELSE_TEXT) +#define TAG_LOOP_LENGTH SIZEOF(TAG_LOOP_TEXT) +#define TAG_BREAK_LENGTH SIZEOF(TAG_BREAK_TEXT) +#define TAG_CONTINUE_LENGTH SIZEOF(TAG_CONTINUE_TEXT) +#define TAG_END_LENGTH SIZEOF(TAG_END_TEXT) + +//I guess it counts the backslash? +#define ATTRIBUTE_VARNAME_LENGTH SIZEOF(ATTRIBUTE_VARNAME) - 1 +#define ATTRIBUTE_DEFAULT_LENGTH SIZEOF(ATTRIBUTE_DEFAULT) - 1 +#define ATTRIBUTE_VALUE_LENGTH SIZEOF(ATTRIBUTE_VALUE) - 1 + +//Define to 0 for slight speedup improvements, no errors +#define DEBUGGING 1 +//Length of error messages +#define ERR_MSG_LEN 500 + +/*The different kind of nodes we can have*/ +enum TMPL_tagtype{ + tag_null = 0,/*Should never show up*/ + tag_text = 1,/*A text sequence*/ + tag_var = 2,/*A variable to replace*/ + tag_if = 3,/*If*/ + tag_elseif = 4,/*Else if*/ + tag_else = 5,/*Else*/ + tag_end = 6,/*end if, end loop*/ + tag_loop = 7,/*Loop*/ + tag_break = 9,/*Break*/ + tag_continue = 10,/*Skip the rest of the loop and go again*/ +}; + +struct TMPL_light_string{ + const char* start; + size_t len; +}; + +enum TMPL_vartype{ + vartype_null = 0, + vartype_loop, + vartype_var +}; + + +struct TMPL_varlist{ + map_t map; +}TMPL_varlist; + +struct TMPL_loop{ + struct TMPL_varlist* varlist; + size_t loop_len; + struct TMPL_loop* next; + struct TMPL_loop* tail; +}; + +struct TMPL_varitem{ + enum TMPL_vartype type; + union { + struct TMPL_loop* l; + char* s; + }item; +}; + +/*Holds all the data needed for a single node in a template*/ +struct TMPL_tagnode{ + enum TMPL_tagtype type; + struct TMPL_tagnode* next; + unsigned int line; + unsigned int character; + union{ + /*Text*/ + struct{ + const char* start; + size_t len; + }text; + /*Var*/ + struct{ + char* varname; + size_t name_len; + char* defaultval; + size_t default_len; + }var; + + /*If, elseif*/ + struct{ + char* varname; + char* testval; + struct TMPL_tagnode* tbranch; + struct TMPL_tagnode* fbranch; + }ifelse; + + /*Loop*/ + struct{ + char* loopname; + struct TMPL_tagnode* body; + }loop; + + /*Break and Continue*/ + struct{ + int level; + }breakcont; + }TMPL_tag; +}TMPL_tagnode; + +//typedef void (*TMPL_fmtfuncs) (const char*, struct TMPL_buf*); +/* + * TMPL_fmtlist is a list of format functions, which are passed to + * a template. A TMPL_VAR tag can specify a format function for + * outputting the variable with the fmt="fmtname" attribute. + */ +struct TMPL_fmtlist{ + struct TMPL_fmtlist* next; + void* fmtfunc; + char* name; +} TMPL_fmtlist; + +/* Holdes all the data needed for a template*/ +struct TMPL_templates{ + struct TMPL_buf* out; + struct TMPL_buf* errout; + struct TMPL_tagnode* roottag; + int linenum; + int error; +} TMPL_templates; + + +struct TMPL_token{ + char* start;//Start of token + char* end;//End of token + enum TMPL_tagtype type;//The type of token + size_t length;//Length of token, should always be end-start + struct TMPL_token* next;//The next token + unsigned int line;// Not used currently + unsigned int character;// Not used currently +}TMPL_token; + +void TMPL_add_var_to_varlist(struct TMPL_varlist* vl, char* name, char* value); +void TMPL_add_loop_to_varlist(struct TMPL_varlist* vl, char* name, struct TMPL_loop* loop); +void TMPL_add_varlist_to_loop(struct TMPL_loop* l, struct TMPL_varlist* vl); + + +struct TMPL_varlist* TMPL_alloc_varlist(void); +void TMPL_free_varlist(struct TMPL_varlist* t); + +struct TMPL_varitem* TMPL_alloc_varitem(void); +void TMPL_free_varitem(struct TMPL_varitem* vi); + +struct TMPL_templates* TMPL_alloc_template(char* t); +void TMPL_free_template(struct TMPL_templates* t); + +struct TMPL_loop* TMPL_alloc_loop(void); +void TMPL_free_loop(struct TMPL_loop* tl); + +char* TMPL_render(struct TMPL_templates* t, struct TMPL_varlist* varlist, size_t* size_p); + +struct TMPL_tagnode* TMPL_alloc_tagnode(enum TMPL_tagtype); +void TMPL_free_tagnode(struct TMPL_tagnode* tn); + +/*A debug function*/ +void print_varlist(struct TMPL_varlist* vl); +void print_ast(struct TMPL_templates* root); + +#endif |