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fixes to LINENO, read -n, command substitution and backslash-escaped newlines

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This commit is contained in:
Chet Ramey
2021-12-20 20:03:26 -05:00
parent 5f2dd5ff95
commit b2b78a6348
16 changed files with 895 additions and 1185 deletions
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arrayfunc.h
+29 -3
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@@ -23,6 +23,29 @@
/* Must include variables.h before including this file. */
/* An object to encapsulate the state of an array element. It can describe
an array assignment A[KEY]=VALUE or a[IND]=VALUE depending on TYPE, or
for passing array subscript references around, where VALUE would be
${a[IND]} or ${A[KEY]}. This is not dependent on ARRAY_VARS so we can
use it in function parameters. */
/* values for `type' field */
#define ARRAY_INVALID -1
#define ARRAY_SCALAR 0
#define ARRAY_INDEXED 1
#define ARRAY_ASSOC 2
/* KEY will contain allocated memory if called through the assign_array_element
code path because of how assoc_insert works. */
typedef struct element_state
{
short type; /* assoc or indexed, says which fields are valid */
short subtype; /* `*', `@', or something else */
arrayind_t ind;
char *key; /* can be allocated memory */
char *value;
} array_eltstate_t;
#if defined (ARRAY_VARS)
/* This variable means to not expand associative array subscripts more than
@@ -56,7 +79,7 @@ extern char *make_array_variable_value PARAMS((SHELL_VAR *, arrayind_t, char *,
extern SHELL_VAR *bind_array_variable PARAMS((char *, arrayind_t, char *, int));
extern SHELL_VAR *bind_array_element PARAMS((SHELL_VAR *, arrayind_t, char *, int));
extern SHELL_VAR *assign_array_element PARAMS((char *, char *, int, char **));
extern SHELL_VAR *assign_array_element PARAMS((char *, char *, int, array_eltstate_t *));
extern SHELL_VAR *bind_assoc_variable PARAMS((SHELL_VAR *, char *, char *, char *, int));
@@ -85,14 +108,17 @@ extern arrayind_t array_expand_index PARAMS((SHELL_VAR *, char *, int, int));
extern int valid_array_reference PARAMS((const char *, int));
extern int tokenize_array_reference PARAMS((char *, int, char **));
extern char *array_value PARAMS((const char *, int, int, int *, arrayind_t *));
extern char *get_array_value PARAMS((const char *, int, int *, arrayind_t *));
extern char *array_value PARAMS((const char *, int, int, array_eltstate_t *));
extern char *get_array_value PARAMS((const char *, int, array_eltstate_t *));
extern char *array_keys PARAMS((char *, int, int));
extern char *array_variable_name PARAMS((const char *, int, char **, int *));
extern SHELL_VAR *array_variable_part PARAMS((const char *, int, char **, int *));
extern void init_eltstate (array_eltstate_t *);
extern void flush_eltstate (array_eltstate_t *);
#else
#define AV_ALLOWALL 0