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6f50f01674
zsh/Src/zsh.h
Tanaka Akira e74702b467 Initial revision
1999-04-15 18:05:38 +00:00

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/*
* zsh.h - standard header file
*
* This file is part of zsh, the Z shell.
*
* Copyright (c) 1992-1997 Paul Falstad
* All rights reserved.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and to distribute modified versions of this software for any
* purpose, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* In no event shall Paul Falstad or the Zsh Development Group be liable
* to any party for direct, indirect, special, incidental, or consequential
* damages arising out of the use of this software and its documentation,
* even if Paul Falstad and the Zsh Development Group have been advised of
* the possibility of such damage.
*
* Paul Falstad and the Zsh Development Group specifically disclaim any
* warranties, including, but not limited to, the implied warranties of
* merchantability and fitness for a particular purpose. The software
* provided hereunder is on an "as is" basis, and Paul Falstad and the
* Zsh Development Group have no obligation to provide maintenance,
* support, updates, enhancements, or modifications.
*
*/
#define trashzle() trashzleptr()
#define zleread(X,Y,H) zlereadptr(X,Y,H)
#define spaceinline(X) spaceinlineptr(X)
#define gotword() gotwordptr()
#define refresh() refreshptr()
#define compctlread(N,A,O,R) compctlreadptr(N,A,O,R)
/* A few typical macros */
#define minimum(a,b) ((a) < (b) ? (a) : (b))
/* math.c */
typedef int LV;
/* Character tokens are sometimes casted to (unsigned char)'s. *
* Unfortunately, some compilers don't correctly cast signed to *
* unsigned promotions; i.e. (int)(unsigned char)((char) -1) evaluates *
* to -1, instead of 255 like it should. We circumvent the troubles *
* of such shameful delinquency by casting to a larger unsigned type *
* then back down to unsigned char. */
#ifdef BROKEN_SIGNED_TO_UNSIGNED_CASTING
# define STOUC(X) ((unsigned char)(unsigned short)(X))
#else
# define STOUC(X) ((unsigned char)(X))
#endif
/* Meta together with the character following Meta denotes the character *
* which is the exclusive or of 32 and the character following Meta. *
* This is used to represent characters which otherwise has special *
* meaning for zsh. These are the characters for which the imeta() test *
* is true: the null character, and the characters from Meta to Marker. */
#define Meta ((char) 0x83)
/* Note that the fourth character in DEFAULT_IFS is Meta *
* followed by a space which denotes the null character. */
#define DEFAULT_IFS " \t\n\203 "
/* Character tokens */
#define Pound ((char) 0x84)
#define String ((char) 0x85)
#define Hat ((char) 0x86)
#define Star ((char) 0x87)
#define Inpar ((char) 0x88)
#define Outpar ((char) 0x89)
#define Qstring ((char) 0x8a)
#define Equals ((char) 0x8b)
#define Bar ((char) 0x8c)
#define Inbrace ((char) 0x8d)
#define Outbrace ((char) 0x8e)
#define Inbrack ((char) 0x8f)
#define Outbrack ((char) 0x90)
#define Tick ((char) 0x91)
#define Inang ((char) 0x92)
#define Outang ((char) 0x93)
#define Quest ((char) 0x94)
#define Tilde ((char) 0x95)
#define Qtick ((char) 0x96)
#define Comma ((char) 0x97)
#define Snull ((char) 0x98)
#define Dnull ((char) 0x99)
#define Bnull ((char) 0x9a)
#define Nularg ((char) 0x9b)
#define INULL(x) (((x) & 0xfc) == 0x98)
/* Marker used in paramsubst for rc_expand_param */
#define Marker ((char) 0x9c)
/* chars that need to be quoted if meant literally */
#define SPECCHARS "#$^*()=|{}[]`<>?~;&\n\t \\\'\""
enum {
NULLTOK, /* 0 */
SEPER,
NEWLIN,
SEMI,
DSEMI,
AMPER, /* 5 */
INPAR,
OUTPAR,
DBAR,
DAMPER,
OUTANG, /* 10 */
OUTANGBANG,
DOUTANG,
DOUTANGBANG,
INANG,
INOUTANG, /* 15 */
DINANG,
DINANGDASH,
INANGAMP,
OUTANGAMP,
AMPOUTANG, /* 20 */
OUTANGAMPBANG,
DOUTANGAMP,
DOUTANGAMPBANG,
TRINANG,
BAR, /* 25 */
BARAMP,
INOUTPAR,
DINPAR,
DOUTPAR,
AMPERBANG, /* 30 */
SEMIAMP,
DOUTBRACK,
STRING,
ENVSTRING,
ENVARRAY, /* 35 */
ENDINPUT,
LEXERR,
/* Tokens for reserved words */
BANG, /* ! */
DINBRACK, /* [[ */
INBRACE, /* { */ /* 40 */
OUTBRACE, /* } */
CASE, /* case */
COPROC, /* coproc */
DO, /* do */
DONE, /* done */ /* 45 */
ELIF, /* elif */
ELSE, /* else */
ZEND, /* end */
ESAC, /* esac */
FI, /* fi */ /* 50 */
FOR, /* for */
FOREACH, /* foreach */
FUNC, /* function */
IF, /* if */
NOCORRECT, /* nocorrect */ /* 55 */
REPEAT, /* repeat */
SELECT, /* select */
THEN, /* then */
TIME, /* time */
UNTIL, /* until */ /* 60 */
WHILE /* while */
};
/* Redirection types. If you modify this, you may also have to modify *
* redirtab in parse.c and getredirs() in text.c and the IS_* macros *
* below. */
enum {
WRITE, /* > */
WRITENOW, /* >| */
APP, /* >> */
APPNOW, /* >>| */
ERRWRITE, /* &>, >& */
ERRWRITENOW, /* >&| */
ERRAPP, /* >>& */
ERRAPPNOW, /* >>&| */
READWRITE, /* <> */
READ, /* < */
HEREDOC, /* << */
HEREDOCDASH, /* <<- */
HERESTR, /* <<< */
MERGEIN, /* <&n */
MERGEOUT, /* >&n */
CLOSE, /* >&-, <&- */
INPIPE, /* < <(...) */
OUTPIPE /* > >(...) */
};
#define IS_WRITE_FILE(X) ((X)>=WRITE && (X)<=READWRITE)
#define IS_APPEND_REDIR(X) (IS_WRITE_FILE(X) && ((X) & 2))
#define IS_CLOBBER_REDIR(X) (IS_WRITE_FILE(X) && ((X) & 1))
#define IS_ERROR_REDIR(X) ((X)>=ERRWRITE && (X)<=ERRAPPNOW)
#define IS_READFD(X) (((X)>=READWRITE && (X)<=MERGEIN) || (X)==INPIPE)
#define IS_REDIROP(X) ((X)>=OUTANG && (X)<=TRINANG)
/* Flags for input stack */
#define INP_FREE (1<<0) /* current buffer can be free'd */
#define INP_ALIAS (1<<1) /* expanding alias or history */
#define INP_HIST (1<<2) /* expanding history */
#define INP_CONT (1<<3) /* continue onto previously stacked input */
#define INP_ALCONT (1<<4) /* stack is continued from alias expn. */
/* Flags for metafy */
#define META_REALLOC 0
#define META_USEHEAP 1
#define META_STATIC 2
#define META_DUP 3
#define META_ALLOC 4
#define META_NOALLOC 5
#define META_HEAPDUP 6
#define META_HREALLOC 7
/**************************/
/* Abstract types for zsh */
/**************************/
typedef struct linknode *LinkNode;
typedef struct linklist *LinkList;
typedef struct hashnode *HashNode;
typedef struct hashtable *HashTable;
typedef struct reswd *Reswd;
typedef struct alias *Alias;
typedef struct param *Param;
typedef struct cmdnam *Cmdnam;
typedef struct shfunc *Shfunc;
typedef struct builtin *Builtin;
typedef struct nameddir *Nameddir;
typedef struct module *Module;
typedef struct process *Process;
typedef struct job *Job;
typedef struct value *Value;
typedef struct varasg *Varasg;
typedef struct cond *Cond;
typedef struct cmd *Cmd;
typedef struct pline *Pline;
typedef struct sublist *Sublist;
typedef struct list *List;
typedef struct comp *Comp;
typedef struct redir *Redir;
typedef struct complist *Complist;
typedef struct heap *Heap;
typedef struct heapstack *Heapstack;
typedef struct histent *Histent;
typedef struct forcmd *Forcmd;
typedef struct autofn *AutoFn;
typedef struct asgment *Asgment;
/********************************/
/* Definitions for linked lists */
/********************************/
/* linked list abstract data type */
struct linknode {
LinkNode next;
LinkNode last;
void *dat;
};
struct linklist {
LinkNode first;
LinkNode last;
};
/* Macros for manipulating link lists */
#define addlinknode(X,Y) insertlinknode(X,(X)->last,Y)
#define uaddlinknode(X,Y) uinsertlinknode(X,(X)->last,Y)
#define empty(X) ((X)->first == NULL)
#define nonempty(X) ((X)->first != NULL)
#define firstnode(X) ((X)->first)
#define getaddrdata(X) (&((X)->dat))
#define getdata(X) ((X)->dat)
#define setdata(X,Y) ((X)->dat = (Y))
#define lastnode(X) ((X)->last)
#define nextnode(X) ((X)->next)
#define prevnode(X) ((X)->last)
#define peekfirst(X) ((X)->first->dat)
#define pushnode(X,Y) insertlinknode(X,(LinkNode) X,Y)
#define incnode(X) (X = nextnode(X))
#define gethistent(X) (histentarr+((X)%histentct))
/********************************/
/* Definitions for syntax trees */
/********************************/
/* struct list, struct sublist, struct pline, etc. all fit the form *
* of this structure and are used interchangably. The ptrs may hold *
* integers or pointers, depending on the type of the node. */
/* Generic node structure for syntax trees */
struct node {
int ntype; /* node type */
};
#define N_LIST 0
#define N_SUBLIST 1
#define N_PLINE 2
#define N_CMD 3
#define N_REDIR 4
#define N_COND 5
#define N_FOR 6
#define N_CASE 7
#define N_IF 8
#define N_WHILE 9
#define N_VARASG 10
#define N_AUTOFN 11
#define N_COUNT 12
/* values for types[4] */
#define NT_EMPTY 0
#define NT_NODE 1
#define NT_STR 2
#define NT_LIST 4
#define NT_ARR 8
#define NT_TYPE(T) ((T) & 0xff)
#define NT_N(T, N) (((T) >> (8 + (N) * 4)) & 0xf)
#define NT_SET(T0, T1, T2, T3, T4) \
((T0) | ((T1) << 8) | ((T2) << 12) | ((T3) << 16) | ((T4) << 20))
#define NT_HEAP (1 << 30)
/* tree element for lists */
struct list {
int ntype; /* node type */
int type;
Sublist left;
List right;
};
/* These are control flags that are passed *
* down the execution pipeline. */
#define Z_TIMED (1<<0) /* pipeline is being timed */
#define Z_SYNC (1<<1) /* run this sublist synchronously (;) */
#define Z_ASYNC (1<<2) /* run this sublist asynchronously (&) */
#define Z_DISOWN (1<<3) /* run this sublist without job control (&|) */
/* tree element for sublists */
struct sublist {
int ntype; /* node type */
int type;
int flags; /* see PFLAGs below */
Pline left;
Sublist right;
};
#define ORNEXT 10 /* || */
#define ANDNEXT 11 /* && */
#define PFLAG_NOT 1 /* ! ... */
#define PFLAG_COPROC 32 /* coproc ... */
/* tree element for pipes */
struct pline {
int ntype; /* node type */
int type;
Cmd left;
Pline right;
};
#define END 0 /* pnode *right is null */
#define PIPE 1 /* pnode *right is the rest of the pipeline */
/* tree element for commands */
struct cmd {
int ntype; /* node type */
int type;
int flags; /* see CFLAGs below */
int lineno; /* lineno of script for command */
union {
List list; /* for SUBSH/CURSH/SHFUNC */
Forcmd forcmd;
struct casecmd *casecmd;
struct ifcmd *ifcmd;
struct whilecmd *whilecmd;
Sublist pline;
Cond cond;
AutoFn autofn;
void *generic;
} u;
LinkList args; /* command & argmument List (char *'s) */
LinkList redir; /* i/o redirections (struct redir *'s) */
LinkList vars; /* param assignments (struct varasg *'s) */
};
/* cmd types */
#define SIMPLE 0
#define SUBSH 1
#define CURSH 2
#define ZCTIME 3
#define FUNCDEF 4
#define CFOR 5
#define CWHILE 6
#define CREPEAT 7
#define CIF 8
#define CCASE 9
#define CSELECT 10
#define COND 11
#define CARITH 12
#define AUTOFN 13
/* flags for command modifiers */
#define CFLAG_EXEC (1<<0) /* exec ... */
/* tree element for redirection lists */
struct redir {
int ntype; /* node type */
int type;
int fd1, fd2;
char *name;
};
/* tree element for conditionals */
struct cond {
int ntype; /* node type */
int type; /* can be cond_type, or a single */
/* letter (-a, -b, ...) */
void *left, *right;
};
#define COND_NOT 0
#define COND_AND 1
#define COND_OR 2
#define COND_STREQ 3
#define COND_STRNEQ 4
#define COND_STRLT 5
#define COND_STRGTR 6
#define COND_NT 7
#define COND_OT 8
#define COND_EF 9
#define COND_EQ 10
#define COND_NE 11
#define COND_LT 12
#define COND_GT 13
#define COND_LE 14
#define COND_GE 15
struct forcmd { /* for/select */
/* Cmd->args contains list of words to loop thru */
int ntype; /* node type */
int inflag; /* if there is an in ... clause */
char *name; /* initializer or parameter name */
char *condition; /* arithmetic terminating condition */
char *advance; /* evaluated after each loop */
List list; /* list to look through for each name */
};
struct casecmd {
/* Cmd->args contains word to test */
int ntype; /* node type */
char **pats;
List *lists; /* list to execute */
};
/* A command like "if foo then bar elif baz then fubar else fooble" */
/* generates a tree like: */
/* */
/* struct ifcmd a = { next = &b, ifl = "foo", thenl = "bar" } */
/* struct ifcmd b = { next = &c, ifl = "baz", thenl = "fubar" } */
/* struct ifcmd c = { next = NULL, ifl = NULL, thenl = "fooble" } */
struct ifcmd {
int ntype; /* node type */
List *ifls;
List *thenls;
};
struct whilecmd {
int ntype; /* node type */
int cond; /* 0 for while, 1 for until */
List cont; /* condition */
List loop; /* list to execute until condition met */
};
/* node for autoloading functions */
struct autofn {
int ntype; /* node type */
Shfunc shf; /* the shell function to define */
};
/* The number of fds space is allocated for *
* each time a multio must increase in size. */
#define MULTIOUNIT 8
/* A multio is a list of fds associated with a certain fd. *
* Thus if you do "foo >bar >ble", the multio for fd 1 will have *
* two fds, the result of open("bar",...), and the result of *
* open("ble",....). */
/* structure used for multiple i/o redirection */
/* one for each fd open */
struct multio {
int ct; /* # of redirections on this fd */
int rflag; /* 0 if open for reading, 1 if open for writing */
int pipe; /* fd of pipe if ct > 1 */
int fds[MULTIOUNIT]; /* list of src/dests redirected to/from this fd */
};
/* variable assignment tree element */
struct varasg {
int ntype; /* node type */
int type; /* nonzero means array */
char *name;
char *str; /* should've been a union here. oh well */
LinkList arr;
};
/* lvalue for variable assignment/expansion */
struct value {
int isarr;
Param pm; /* parameter node */
int inv; /* should we return the index ? */
int a; /* first element of array slice, or -1 */
int b; /* last element of array slice, or -1 */
};
/* structure for foo=bar assignments */
struct asgment {
struct asgment *next;
char *name;
char *value;
};
#define MAX_ARRLEN 262144
/********************************************/
/* Defintions for job table and job control */
/********************************************/
/* size of job table */
#define MAXJOB 50
/* entry in the job table */
struct job {
pid_t gleader; /* process group leader of this job */
pid_t other; /* subjob id or subshell pid */
int stat; /* see STATs below */
char *pwd; /* current working dir of shell when *
* this job was spawned */
struct process *procs; /* list of processes */
LinkList filelist; /* list of files to delete when done */
int stty_in_env; /* if STTY=... is present */
struct ttyinfo *ty; /* the modes specified by STTY */
};
#define STAT_CHANGED (1<<0) /* status changed and not reported */
#define STAT_STOPPED (1<<1) /* all procs stopped or exited */
#define STAT_TIMED (1<<2) /* job is being timed */
#define STAT_DONE (1<<3) /* job is done */
#define STAT_LOCKED (1<<4) /* shell is finished creating this job, */
/* may be deleted from job table */
#define STAT_NOPRINT (1<<5) /* job was killed internally, */
/* we don't want to show that */
#define STAT_INUSE (1<<6) /* this job entry is in use */
#define STAT_SUPERJOB (1<<7) /* job has a subjob */
#define STAT_SUBJOB (1<<8) /* job is a subjob */
#define STAT_CURSH (1<<9) /* last command is in current shell */
#define STAT_NOSTTY (1<<10) /* the tty settings are not inherited */
/* from this job when it exits. */
#define SP_RUNNING -1 /* fake status for jobs currently running */
struct timeinfo {
long ut; /* user space time */
long st; /* system space time */
};
#define JOBTEXTSIZE 80
/* node in job process lists */
struct process {
struct process *next;
pid_t pid; /* process id */
char text[JOBTEXTSIZE]; /* text to print when 'jobs' is run */
int status; /* return code from waitpid/wait3() */
struct timeinfo ti;
struct timeval bgtime; /* time job was spawned */
struct timeval endtime; /* time job exited */
};
struct execstack {
struct execstack *next;
LinkList args;
pid_t list_pipe_pid;
int nowait;
int pline_level;
int list_pipe_child;
int list_pipe_job;
char list_pipe_text[JOBTEXTSIZE];
int lastval;
int noeval;
int badcshglob;
pid_t cmdoutpid;
int cmdoutval;
int trapreturn;
int noerrs;
int subsh_close;
char *underscore;
};
struct heredocs {
struct heredocs *next;
Redir rd;
};
struct dirsav {
int dirfd, level;
char *dirname;
dev_t dev;
ino_t ino;
};
/*******************************/
/* Definitions for Hash Tables */
/*******************************/
typedef void *(*VFunc) _((void *));
typedef void (*FreeFunc) _((void *));
typedef unsigned (*HashFunc) _((char *));
typedef void (*TableFunc) _((HashTable));
typedef void (*AddNodeFunc) _((HashTable, char *, void *));
typedef HashNode (*GetNodeFunc) _((HashTable, char *));
typedef HashNode (*RemoveNodeFunc) _((HashTable, char *));
typedef void (*FreeNodeFunc) _((HashNode));
/* type of function that is passed to *
* scanhashtable or scanmatchtable */
typedef void (*ScanFunc) _((HashNode, int));
typedef void (*PrintTableStats) _((HashTable));
/* hash table for standard open hashing */
struct hashtable {
/* HASHTABLE DATA */
int hsize; /* size of nodes[] (number of hash values) */
int ct; /* number of elements */
HashNode *nodes; /* array of size hsize */
/* HASHTABLE METHODS */
HashFunc hash; /* pointer to hash function for this table */
TableFunc emptytable; /* pointer to function to empty table */
TableFunc filltable; /* pointer to function to fill table */
AddNodeFunc addnode; /* pointer to function to add new node */
GetNodeFunc getnode; /* pointer to function to get an enabled node */
GetNodeFunc getnode2; /* pointer to function to get node */
/* (getnode2 will ignore DISABLED flag) */
RemoveNodeFunc removenode; /* pointer to function to delete a node */
ScanFunc disablenode; /* pointer to function to disable a node */
ScanFunc enablenode; /* pointer to function to enable a node */
FreeNodeFunc freenode; /* pointer to function to free a node */
ScanFunc printnode; /* pointer to function to print a node */
#ifdef HASHTABLE_INTERNAL_MEMBERS
HASHTABLE_INTERNAL_MEMBERS /* internal use in hashtable.c */
#endif
};
/* generic hash table node */
struct hashnode {
HashNode next; /* next in hash chain */
char *nam; /* hash key */
int flags; /* various flags */
};
/* The flag to disable nodes in a hash table. Currently *
* you can disable builtins, shell functions, aliases and *
* reserved words. */
#define DISABLED (1<<0)
/* node in shell reserved word hash table (reswdtab) */
struct reswd {
HashNode next; /* next in hash chain */
char *nam; /* name of reserved word */
int flags; /* flags */
int token; /* corresponding lexer token */
};
/* node in alias hash table (aliastab) */
struct alias {
HashNode next; /* next in hash chain */
char *nam; /* hash data */
int flags; /* flags for alias types */
char *text; /* expansion of alias */
int inuse; /* alias is being expanded */
};
/* is this alias global */
#define ALIAS_GLOBAL (1<<1)
/* node in command path hash table (cmdnamtab) */
struct cmdnam {
HashNode next; /* next in hash chain */
char *nam; /* hash data */
int flags;
union {
char **name; /* full pathname for external commands */
char *cmd; /* file name for hashed commands */
}
u;
};
/* flag for nodes explicitly added to *
* cmdnamtab with hash builtin */
#define HASHED (1<<1)
/* node in shell function hash table (shfunctab) */
struct shfunc {
HashNode next; /* next in hash chain */
char *nam; /* name of shell function */
int flags; /* various flags */
List funcdef; /* function definition */
};
/* node in builtin command hash table (builtintab) */
typedef int (*HandlerFunc) _((char *, char **, char *, int));
#define NULLBINCMD ((HandlerFunc) 0)
struct builtin {
HashNode next; /* next in hash chain */
char *nam; /* name of builtin */
int flags; /* various flags */
HandlerFunc handlerfunc; /* pointer to function that executes this builtin */
int minargs; /* minimum number of arguments */
int maxargs; /* maximum number of arguments, or -1 for no limit */
int funcid; /* xbins (see above) for overloaded handlerfuncs */
char *optstr; /* string of legal options */
char *defopts; /* options set by default for overloaded handlerfuncs */
};
#define BUILTIN(name, flags, handler, min, max, funcid, optstr, defopts) \
{ NULL, name, flags, handler, min, max, funcid, optstr, defopts }
#define BIN_PREFIX(name, flags) \
BUILTIN(name, flags | BINF_PREFIX, NULLBINCMD, 0, 0, 0, NULL, NULL)
/* builtin flags */
/* DISABLE IS DEFINED AS (1<<0) */
#define BINF_PLUSOPTS (1<<1) /* +xyz legal */
#define BINF_R (1<<2) /* this is the builtin `r' (fc -e -) */
#define BINF_PRINTOPTS (1<<3)
#define BINF_ADDED (1<<4) /* is in the builtins hash table */
#define BINF_FCOPTS (1<<5)
#define BINF_TYPEOPT (1<<6)
#define BINF_ECHOPTS (1<<7)
#define BINF_MAGICEQUALS (1<<8) /* needs automatic MAGIC_EQUAL_SUBST substitution */
#define BINF_PREFIX (1<<9)
#define BINF_DASH (1<<10)
#define BINF_BUILTIN (1<<11)
#define BINF_COMMAND (1<<12)
#define BINF_EXEC (1<<13)
#define BINF_NOGLOB (1<<14)
#define BINF_PSPECIAL (1<<15)
#define BINF_TYPEOPTS (BINF_TYPEOPT|BINF_PLUSOPTS)
struct module {
char *nam;
int flags;
void *handle;
LinkList deps;
};
#define MOD_BUSY (1<<0)
/* node used in parameter hash table (paramtab) */
struct param {
HashNode next; /* next in hash chain */
char *nam; /* hash data */
int flags; /* PM_* flags */
/* the value of this parameter */
union {
void *data; /* used by special parameter functions */
char **arr; /* value if declared array (PM_ARRAY) */
char *str; /* value if declared string (PM_SCALAR) */
long val; /* value if declared integer (PM_INTEGER) */
} u;
/* pointer to function to set value of this parameter */
union {
void (*cfn) _((Param, char *));
void (*ifn) _((Param, long));
void (*afn) _((Param, char **));
} sets;
/* pointer to function to get value of this parameter */
union {
char *(*cfn) _((Param));
long (*ifn) _((Param));
char **(*afn) _((Param));
} gets;
/* pointer to function to unset this parameter */
void (*unsetfn) _((Param, int));
int ct; /* output base or field width */
char *env; /* location in environment, if exported */
char *ename; /* name of corresponding environment var */
Param old; /* old struct for use with local */
int level; /* if (old != NULL), level of localness */
};
/* flags for parameters */
/* parameter types */
#define PM_SCALAR 0 /* scalar */
#define PM_ARRAY (1<<0) /* array */
#define PM_INTEGER (1<<1) /* integer */
#define PM_TYPE(X) (X & (PM_SCALAR|PM_INTEGER|PM_ARRAY))
#define PM_LEFT (1<<2) /* left justify and remove leading blanks */
#define PM_RIGHT_B (1<<3) /* right justify and fill with leading blanks */
#define PM_RIGHT_Z (1<<4) /* right justify and fill with leading zeros */
#define PM_LOWER (1<<5) /* all lower case */
/* The following are the same since they *
* both represent -u option to typeset */
#define PM_UPPER (1<<6) /* all upper case */
#define PM_UNDEFINED (1<<6) /* undefined (autoloaded) shell function */
#define PM_READONLY (1<<7) /* readonly */
#define PM_TAGGED (1<<8) /* tagged */
#define PM_EXPORTED (1<<9) /* exported */
#define PM_UNIQUE (1<<10) /* remove duplicates */
#define PM_SPECIAL (1<<11) /* special builtin parameter */
#define PM_DONTIMPORT (1<<12) /* do not import this variable */
#define PM_RESTRICTED (1<<13) /* cannot be changed in restricted mode */
#define PM_UNSET (1<<14) /* has null value */
/* node for named directory hash table (nameddirtab) */
struct nameddir {
HashNode next; /* next in hash chain */
char *nam; /* directory name */
int flags; /* see below */
char *dir; /* the directory in full */
int diff; /* strlen(.dir) - strlen(.nam) */
};
/* flags for named directories */
/* DISABLED is defined (1<<0) */
#define ND_USERNAME (1<<1) /* nam is actually a username */
/* flags for controlling printing of hash table nodes */
#define PRINT_NAMEONLY (1<<0)
#define PRINT_TYPE (1<<1)
#define PRINT_LIST (1<<2)
/* flags for printing for the whence builtin */
#define PRINT_WHENCE_CSH (1<<3)
#define PRINT_WHENCE_VERBOSE (1<<4)
#define PRINT_WHENCE_SIMPLE (1<<5)
#define PRINT_WHENCE_FUNCDEF (1<<6)
#define PRINT_WHENCE_WORD (1<<7)
/***********************************/
/* Definitions for history control */
/***********************************/
/* history entry */
struct histent {
char *text; /* the history line itself */
char *zle_text; /* the edited history line */
time_t stim; /* command started time (datestamp) */
time_t ftim; /* command finished time */
short *words; /* Position of words in history */
/* line: as pairs of start, end */
int nwords; /* Number of words in history line */
int flags; /* Misc flags */
};
#define HIST_OLD 0x00000001 /* Command is already written to disk*/
#define HIST_READ 0x00000002 /* Command was read back from disk*/
/* Parts of the code where history expansion is disabled *
* should be within a pair of STOPHIST ... ALLOWHIST */
#define STOPHIST (stophist += 4);
#define ALLOWHIST (stophist -= 4);
#define HISTFLAG_DONE 1
#define HISTFLAG_NOEXEC 2
#define HISTFLAG_RECALL 4
/******************************************/
/* Definitions for programable completion */
/******************************************/
/* Nothing special. */
#define IN_NOTHING 0
/* In command position. */
#define IN_CMD 1
/* In a mathematical environment. */
#define IN_MATH 2
/* In a condition. */
#define IN_COND 3
/* In a parameter assignment (e.g. `foo=bar'). */
#define IN_ENV 4
/******************************/
/* Definition for zsh options */
/******************************/
/* Possible values of emulation */
#define EMULATE_CSH (1<<1) /* C shell */
#define EMULATE_KSH (1<<2) /* Korn shell */
#define EMULATE_SH (1<<3) /* Bourne shell */
#define EMULATE_ZSH (1<<4) /* `native' mode */
/* option indices */
enum {
OPT_INVALID,
ALLEXPORT,
ALWAYSLASTPROMPT,
ALWAYSTOEND,
APPENDHISTORY,
AUTOCD,
AUTOLIST,
AUTOMENU,
AUTONAMEDIRS,
AUTOPARAMKEYS,
AUTOPARAMSLASH,
AUTOPUSHD,
AUTOREMOVESLASH,
AUTORESUME,
BADPATTERN,
BANGHIST,
BAREGLOBQUAL,
BEEP,
BGNICE,
BRACECCL,
BSDECHO,
CDABLEVARS,
CHASELINKS,
CLOBBER,
COMPLETEALIASES,
COMPLETEINWORD,
CORRECT,
CORRECTALL,
CSHJUNKIEHISTORY,
CSHJUNKIELOOPS,
CSHJUNKIEQUOTES,
CSHNULLGLOB,
EQUALS,
ERREXIT,
EXECOPT,
EXTENDEDGLOB,
EXTENDEDHISTORY,
FLOWCONTROL,
FUNCTIONARGZERO,
GLOBOPT,
GLOBASSIGN,
GLOBCOMPLETE,
GLOBDOTS,
GLOBSUBST,
HASHCMDS,
HASHDIRS,
HASHLISTALL,
HISTALLOWCLOBBER,
HISTBEEP,
HISTIGNOREDUPS,
HISTIGNORESPACE,
HISTNOFUNCTIONS,
HISTNOSTORE,
HISTREDUCEBLANKS,
HISTVERIFY,
HUP,
IGNOREBRACES,
IGNOREEOF,
INTERACTIVE,
INTERACTIVECOMMENTS,
KSHARRAYS,
KSHAUTOLOAD,
KSHGLOB,
KSHOPTIONPRINT,
LISTAMBIGUOUS,
LISTBEEP,
LISTTYPES,
LOCALOPTIONS,
LOGINSHELL,
LONGLISTJOBS,
MAGICEQUALSUBST,
MAILWARNING,
MARKDIRS,
MENUCOMPLETE,
MONITOR,
MULTIOS,
NOMATCH,
NOTIFY,
NULLGLOB,
NUMERICGLOBSORT,
OVERSTRIKE,
PATHDIRS,
POSIXBUILTINS,
PRINTEIGHTBIT,
PRINTEXITVALUE,
PRIVILEGED,
PROMPTBANG,
PROMPTCR,
PROMPTPERCENT,
PROMPTSUBST,
PUSHDIGNOREDUPS,
PUSHDMINUS,
PUSHDSILENT,
PUSHDTOHOME,
RCEXPANDPARAM,
RCQUOTES,
RCS,
RECEXACT,
RESTRICTED,
RMSTARSILENT,
RMSTARWAIT,
SHFILEEXPANSION,
SHGLOB,
SHINSTDIN,
SHOPTIONLETTERS,
SHORTLOOPS,
SHWORDSPLIT,
SINGLECOMMAND,
SINGLELINEZLE,
SUNKEYBOARDHACK,
UNSET,
VERBOSE,
XTRACE,
USEZLE,
OPT_SIZE
};
#undef isset
#define isset(X) (opts[X])
#define unset(X) (!opts[X])
#define interact (isset(INTERACTIVE))
#define jobbing (isset(MONITOR))
#define islogin (isset(LOGINSHELL))
/***********************************************/
/* Defintions for terminal and display control */
/***********************************************/
/* tty state structure */
struct ttyinfo {
#ifdef HAVE_TERMIOS_H
struct termios tio;
#else
# ifdef HAVE_TERMIO_H
struct termio tio;
# else
struct sgttyb sgttyb;
int lmodes;
struct tchars tchars;
struct ltchars ltchars;
# endif
#endif
#ifdef TIOCGWINSZ
struct winsize winsize;
#endif
};
/* defines for whether tabs expand to spaces */
#if defined(HAVE_TERMIOS_H) || defined(HAVE_TERMIO_H)
#define SGTTYFLAG shttyinfo.tio.c_oflag
#else /* we're using sgtty */
#define SGTTYFLAG shttyinfo.sgttyb.sg_flags
#endif
# ifdef TAB3
#define SGTABTYPE TAB3
# else
# ifdef OXTABS
#define SGTABTYPE OXTABS
# else
#define SGTABTYPE XTABS
# endif
# endif
/* flags for termflags */
#define TERM_BAD 0x01 /* terminal has extremely basic capabilities */
#define TERM_UNKNOWN 0x02 /* unknown terminal type */
#define TERM_NOUP 0x04 /* terminal has no up capability */
#define TERM_SHORT 0x08 /* terminal is < 3 lines high */
#define TERM_NARROW 0x10 /* terminal is < 3 columns wide */
/* interesting termcap strings */
#define TCCLEARSCREEN 0
#define TCLEFT 1
#define TCMULTLEFT 2
#define TCRIGHT 3
#define TCMULTRIGHT 4
#define TCUP 5
#define TCMULTUP 6
#define TCDOWN 7
#define TCMULTDOWN 8
#define TCDEL 9
#define TCMULTDEL 10
#define TCINS 11
#define TCMULTINS 12
#define TCCLEAREOD 13
#define TCCLEAREOL 14
#define TCINSLINE 15
#define TCDELLINE 16
#define TCNEXTTAB 17
#define TCBOLDFACEBEG 18
#define TCSTANDOUTBEG 19
#define TCUNDERLINEBEG 20
#define TCALLATTRSOFF 21
#define TCSTANDOUTEND 22
#define TCUNDERLINEEND 23
#define TC_COUNT 24
#define tccan(X) (tclen[X])
#define TXTBOLDFACE 0x01
#define TXTSTANDOUT 0x02
#define TXTUNDERLINE 0x04
#define TXTDIRTY 0x80
#define txtisset(X) (txtattrmask & (X))
#define txtset(X) (txtattrmask |= (X))
#define txtunset(X) (txtattrmask &= ~(X))
#define TXTNOBOLDFACE 0x10
#define TXTNOSTANDOUT 0x20
#define TXTNOUNDERLINE 0x40
#define txtchangeisset(X) (txtchange & (X))
#define txtchangeset(X, Y) (txtchange |= (X), txtchange &= ~(Y))
/****************************************/
/* Definitions for the %_ prompt escape */
/****************************************/
#define cmdpush(X) if (!(cmdsp >= 0 && cmdsp < 256)) {;} else cmdstack[cmdsp++]=(X)
#ifdef DEBUG
# define cmdpop() if (cmdsp <= 0) { \
fputs("BUG: cmdstack empty\n", stderr); \
fflush(stderr); \
} else cmdsp--
#else
# define cmdpop() if (cmdsp <= 0) {;} else cmdsp--
#endif
#define CS_FOR 0
#define CS_WHILE 1
#define CS_REPEAT 2
#define CS_SELECT 3
#define CS_UNTIL 4
#define CS_IF 5
#define CS_IFTHEN 6
#define CS_ELSE 7
#define CS_ELIF 8
#define CS_MATH 9
#define CS_COND 10
#define CS_CMDOR 11
#define CS_CMDAND 12
#define CS_PIPE 13
#define CS_ERRPIPE 14
#define CS_FOREACH 15
#define CS_CASE 16
#define CS_FUNCDEF 17
#define CS_SUBSH 18
#define CS_CURSH 19
#define CS_ARRAY 20
#define CS_QUOTE 21
#define CS_DQUOTE 22
#define CS_BQUOTE 23
#define CS_CMDSUBST 24
#define CS_MATHSUBST 25
#define CS_ELIFTHEN 26
#define CS_HEREDOC 27
#define CS_HEREDOCD 28
#define CS_BRACE 29
#define CS_BRACEPAR 30
/*********************
* Memory management *
*********************/
#ifndef DEBUG
# define HEAPALLOC do { int nonlocal_useheap = global_heapalloc(); do
# define PERMALLOC do { int nonlocal_useheap = global_permalloc(); do
# define LASTALLOC while (0); \
if (nonlocal_useheap) global_heapalloc(); \
else global_permalloc(); \
} while(0)
# define LASTALLOC_RETURN \
if ((nonlocal_useheap ? global_heapalloc() : \
global_permalloc()), 0) {;} else return
#else
# define HEAPALLOC do { int nonlocal_useheap = global_heapalloc(); \
alloc_stackp++; do
# define PERMALLOC do { int nonlocal_useheap = global_permalloc(); \
alloc_stackp++; do
# define LASTALLOC while (0); alloc_stackp--; \
if (nonlocal_useheap) global_heapalloc(); \
else global_permalloc(); \
} while(0)
# define LASTALLOC_RETURN \
if ((nonlocal_useheap ? global_heapalloc() : \
global_permalloc()),alloc_stackp--,0){;}else return
#endif
/****************/
/* Debug macros */
/****************/
#ifdef DEBUG
# define DPUTS(X,Y) if (!(X)) {;} else dputs(Y)
# define MUSTUSEHEAP(X) if (useheap) {;} else \
fprintf(stderr, "BUG: permanent allocation in %s\n", X), \
fflush(stderr)
#else
# define DPUTS(X,Y)
# define MUSTUSEHEAP(X)
#endif
/**************************/
/* Signal handling macros */
/**************************/
/* These used in the sigtrapped[] array */
#define ZSIG_TRAPPED (1<<0)
#define ZSIG_IGNORED (1<<1)
#define ZSIG_FUNC (1<<2)
/****************/
/* Entry points */
/****************/
/* compctl entry point pointers */
typedef int (*CompctlReadFn) _((char *, char **, char *, char *));
/* ZLE entry point pointers */
typedef void (*ZleVoidFn) _((void));
typedef void (*ZleVoidIntFn) _((int));
typedef unsigned char * (*ZleReadFn) _((char *, char *, int));
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