cosmopolitan/third_party/sed/defs.h
Justine Tunney fa20edc44d
Reduce header complexity
- Remove most __ASSEMBLER__ __LINKER__ ifdefs
- Rename libc/intrin/bits.h to libc/serialize.h
- Block pthread cancelation in fchmodat() polyfill
- Remove `clang-format off` statements in third_party
2023-11-28 14:39:42 -08:00

123 lines
2.8 KiB
C

#ifndef COSMOPOLITAN_THIRD_PARTY_SED_DEFS_H_
#define COSMOPOLITAN_THIRD_PARTY_SED_DEFS_H_
#include "libc/calls/typedef/u.h"
#include "libc/limits.h"
#include "third_party/regex/regex.h"
COSMOPOLITAN_C_START_
/*
* Types of address specifications
*/
enum e_atype {
AT_RE = 1, /* Line that match RE */
AT_LINE, /* Specific line */
AT_RELLINE, /* Relative line */
AT_LAST /* Last line */
};
/*
* Format of an address
*/
struct s_addr {
enum e_atype type; /* Address type */
union {
u_long l; /* Line number */
regex_t *r; /* Regular expression */
} u;
};
/*
* Substitution command
*/
struct s_subst {
int n; /* Occurrence to subst. */
int p; /* True if p flag */
int icase; /* True if I flag */
char *wfile; /* NULL if no wfile */
int wfd; /* Cached file descriptor */
regex_t *re; /* Regular expression */
unsigned int maxbref; /* Largest backreference. */
u_long linenum; /* Line number. */
char *new; /* Replacement text */
};
/*
* Translate command.
*/
struct s_tr {
unsigned char bytetab[256];
struct trmulti {
size_t fromlen;
char from[MB_LEN_MAX];
size_t tolen;
char to[MB_LEN_MAX];
} *multis;
size_t nmultis;
};
/*
* An internally compiled command.
* Initialy, label references are stored in t, on a second pass they
* are updated to pointers.
*/
struct s_command {
struct s_command *next; /* Pointer to next command */
struct s_addr *a1, *a2; /* Start and end address */
u_long startline; /* Start line number or zero */
char *t; /* Text for : a c i r w */
union {
struct s_command *c; /* Command(s) for b t { */
struct s_subst *s; /* Substitute command */
struct s_tr *y; /* Replace command array */
int fd; /* File descriptor for w */
} u;
char code; /* Command code */
u_int nonsel:1; /* True if ! */
};
/*
* Types of command arguments recognised by the parser
*/
enum e_args {
EMPTY, /* d D g G h H l n N p P q x = \0 */
TEXT, /* a c i */
NONSEL, /* ! */
GROUP, /* { */
ENDGROUP, /* } */
COMMENT, /* # */
BRANCH, /* b t */
LABEL, /* : */
RFILE, /* r */
WFILE, /* w */
SUBST, /* s */
TR /* y */
};
/*
* Structure containing things to append before a line is read
*/
struct s_appends {
enum {AP_STRING, AP_FILE} type;
char *s;
size_t len;
};
enum e_spflag {
APPEND, /* Append to the contents. */
REPLACE /* Replace the contents. */
};
/*
* Structure for a space (process, hold, otherwise).
*/
typedef struct {
char *space; /* Current space pointer. */
size_t len; /* Current length. */
int deleted; /* If deleted. */
int append_newline; /* If originally terminated by \n. */
char *back; /* Backing memory. */
size_t blen; /* Backing memory length. */
} SPACE;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_THIRD_PARTY_SED_DEFS_H_ */