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Move some higher-level JSON manipulation functions into jv_aux.{c,h}

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This commit is contained in:
Stephen Dolan
2012-11-26 22:22:45 +00:00
parent 334a79b704
commit d56370f734
5 changed files with 75 additions and 62 deletions
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2
Makefile
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@@ -21,7 +21,7 @@ version.gen.h: VERSION
sed 's/.*/#define JQ_VERSION "&"/' $^ > $@
main.c: version.gen.h
JQ_SRC=parser.gen.c lexer.gen.c opcode.c bytecode.c compile.c execute.c builtin.c jv.c jv_parse.c jv_print.c jv_dtoa.c jv_unicode.c
JQ_SRC=parser.gen.c lexer.gen.c opcode.c bytecode.c compile.c execute.c builtin.c jv.c jv_parse.c jv_print.c jv_dtoa.c jv_unicode.c jv_aux.c
jq_test: $(JQ_SRC) jq_test.c

1
execute.c
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@@ -14,6 +14,7 @@
#include "locfile.h"
#include "jv.h"
#include "jv_aux.h"
#include "parser.h"
#include "builtin.h"

61
jv.h
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@@ -112,67 +112,6 @@ jv jv_parse(const char* string);
jv jv_parse_sized(const char* string, int length);
static jv jv_lookup(jv t, jv k) {
jv v;
if (jv_get_kind(t) == JV_KIND_OBJECT && jv_get_kind(k) == JV_KIND_STRING) {
v = jv_object_get(t, k);
if (!jv_is_valid(v)) {
jv_free(v);
v = jv_null();
}
} else if (jv_get_kind(t) == JV_KIND_ARRAY && jv_get_kind(k) == JV_KIND_NUMBER) {
// FIXME: don't do lookup for noninteger index
v = jv_array_get(t, (int)jv_number_value(k));
if (!jv_is_valid(v)) {
jv_free(v);
v = jv_null();
}
} else if (jv_get_kind(t) == JV_KIND_NULL &&
(jv_get_kind(k) == JV_KIND_STRING || jv_get_kind(k) == JV_KIND_NUMBER)) {
jv_free(t);
jv_free(k);
v = jv_null();
} else {
v = jv_invalid_with_msg(jv_string_fmt("Cannot index %s with %s",
jv_kind_name(jv_get_kind(t)),
jv_kind_name(jv_get_kind(k))));
jv_free(t);
jv_free(k);
}
return v;
}
static jv jv_modify(jv t, jv k, jv v) {
int isnull = jv_get_kind(t) == JV_KIND_NULL;
if (jv_get_kind(k) == JV_KIND_STRING &&
(jv_get_kind(t) == JV_KIND_OBJECT || isnull)) {
if (isnull) t = jv_object();
t = jv_object_set(t, k, v);
} else if (jv_get_kind(k) == JV_KIND_NUMBER &&
(jv_get_kind(t) == JV_KIND_ARRAY || isnull)) {
if (isnull) t = jv_array();
t = jv_array_set(t, (int)jv_number_value(k), v);
} else {
jv err = jv_invalid_with_msg(jv_string_fmt("Cannot update field at %s index of %s",
jv_kind_name(jv_get_kind(t)),
jv_kind_name(jv_get_kind(v))));
jv_free(t);
jv_free(k);
jv_free(v);
t = err;
}
return t;
}
static jv jv_insert(jv root, jv value, jv* path, int pathlen) {
if (pathlen == 0) {
jv_free(root);
return value;
}
return jv_modify(root, jv_copy(*path),
jv_insert(jv_lookup(jv_copy(root), jv_copy(*path)), value, path+1, pathlen-1));
}

62
jv_aux.c Normal file
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@@ -0,0 +1,62 @@
#include "jv_aux.h"
jv jv_lookup(jv t, jv k) {
jv v;
if (jv_get_kind(t) == JV_KIND_OBJECT && jv_get_kind(k) == JV_KIND_STRING) {
v = jv_object_get(t, k);
if (!jv_is_valid(v)) {
jv_free(v);
v = jv_null();
}
} else if (jv_get_kind(t) == JV_KIND_ARRAY && jv_get_kind(k) == JV_KIND_NUMBER) {
// FIXME: don't do lookup for noninteger index
v = jv_array_get(t, (int)jv_number_value(k));
if (!jv_is_valid(v)) {
jv_free(v);
v = jv_null();
}
} else if (jv_get_kind(t) == JV_KIND_NULL &&
(jv_get_kind(k) == JV_KIND_STRING || jv_get_kind(k) == JV_KIND_NUMBER)) {
jv_free(t);
jv_free(k);
v = jv_null();
} else {
v = jv_invalid_with_msg(jv_string_fmt("Cannot index %s with %s",
jv_kind_name(jv_get_kind(t)),
jv_kind_name(jv_get_kind(k))));
jv_free(t);
jv_free(k);
}
return v;
}
jv jv_modify(jv t, jv k, jv v) {
int isnull = jv_get_kind(t) == JV_KIND_NULL;
if (jv_get_kind(k) == JV_KIND_STRING &&
(jv_get_kind(t) == JV_KIND_OBJECT || isnull)) {
if (isnull) t = jv_object();
t = jv_object_set(t, k, v);
} else if (jv_get_kind(k) == JV_KIND_NUMBER &&
(jv_get_kind(t) == JV_KIND_ARRAY || isnull)) {
if (isnull) t = jv_array();
t = jv_array_set(t, (int)jv_number_value(k), v);
} else {
jv err = jv_invalid_with_msg(jv_string_fmt("Cannot update field at %s index of %s",
jv_kind_name(jv_get_kind(t)),
jv_kind_name(jv_get_kind(v))));
jv_free(t);
jv_free(k);
jv_free(v);
t = err;
}
return t;
}
jv jv_insert(jv root, jv value, jv* path, int pathlen) {
if (pathlen == 0) {
jv_free(root);
return value;
}
return jv_modify(root, jv_copy(*path),
jv_insert(jv_lookup(jv_copy(root), jv_copy(*path)), value, path+1, pathlen-1));
}

11
jv_aux.h Normal file
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@@ -0,0 +1,11 @@
#ifndef JV_AUX_H
#define JV_AUX_H
#include "jv.h"
jv jv_lookup(jv t, jv k);
jv jv_modify(jv t, jv k, jv v);
jv jv_insert(jv root, jv value, jv* path, int pathlen);
#endif