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Diffstat (limited to 'Src/zsh.h')
| -rw-r--r-- | Src/zsh.h | 1293 |
1 files changed, 1293 insertions, 0 deletions
diff --git a/Src/zsh.h b/Src/zsh.h new file mode 100644 index 000000000..e96fc6e86 --- /dev/null +++ b/Src/zsh.h @@ -0,0 +1,1293 @@ +/* + * 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)); |