JR_STR_KV

Macro
August 22, 2025

Table of Contents

`JR_STR_KV`

Description

Read a string key-value pair if key matches.

Parameters

Name	Direction	Description
`si`	in,out	JSON stream iterator to read from.
`k`	in	Expected key name (C-string).
`str`	out	Destination `Str` to store the value.

Usage example (from documentation)

  JR_STR_KV(si, "username", user.name);

Success

str contains the value if key matched

Failure

No-op if key does not match

Usage example (Cross-references)

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In rogrammer/MisraStdC/blob/master/Bin/MisraEnum.c#L62 target=_blank>MisraEnum.c:62:
i64 last_value = 0; JR_OBJ(json, { JR_STR_KV(json, "name", enum_name); JR_BOOL_KV(json, "to_from_str", to_from_str); MisraEnum.c:66:
JR_OBJ_KV(json, "invalid_enum", { JR_STR_KV(json, "name", invalid_enum.name); JR_INT_KV(json, "value", invalid_enum.value); JR_INT_KV(json, "str", invalid_enum.value); MisraEnum.c:79:
JR_OBJ(json, { JR_STR_KV(json, "name", e.name); JR_INT_KV(json, "value", e.value); JR_STR_KV(json, "str", e.str); MisraEnum.c:81:
JR_STR_KV(json, "name", e.name); JR_INT_KV(json, "value", e.value); JR_STR_KV(json, "str", e.str); }); MisraDoc.c:45:
JR_OBJ(json, { \ JR_OBJ_KV(json, "project", { \ JR_STR_KV(json, "build_dir", p.build_dir); \ JR_ARR_KV(json, "test_directories", { \ Str s = StrInit(); \ Read.Simple.c:69:
JR_OBJ(si, { JR_STR_KV(si, "name", name); JR_STR_KV(si, "city", city); }); Read.Simple.c:70:
JR_OBJ(si, { JR_STR_KV(si, "name", name); JR_STR_KV(si, "city", city); }); Read.Simple.c:178:
JR_OBJ(si, { JR_INT_KV(si, "id", person.id); JR_STR_KV(si, "name", person.name); JR_INT_KV(si, "age", person.age); JR_BOOL_KV(si, "is_active", person.is_active); Read.Simple.c:232:
JR_BOOL_KV(si, "debug_mode", config.debug_mode); JR_INT_KV(si, "timeout", config.timeout); JR_STR_KV(si, "log_level", config.log_level); }); Read.Simple.c:342:
JR_OBJ(si, { JR_OBJ_KV(si, "user", { JR_STR_KV(si, "name", data.user.name); JR_STR_KV(si, "email", data.user.email); }); Read.Simple.c:343:
JR_OBJ_KV(si, "user", { JR_STR_KV(si, "name", data.user.name); JR_STR_KV(si, "email", data.user.email); }); JR_BOOL_KV(si, "active", data.active); Read.Simple.c:394:
JR_OBJ(si, { JR_INT_KV(si, "id", product.id); JR_STR_KV(si, "name", product.name); JR_FLT_KV(si, "price", product.price); JR_ARR_KV(si, "tags", { Read.EdgeCases.c:162:
JR_OBJ(si, { JR_STR_KV(si, "name", obj.name); JR_STR_KV(si, "description", obj.description); }); Read.EdgeCases.c:163:
JR_OBJ(si, { JR_STR_KV(si, "name", obj.name); JR_STR_KV(si, "description", obj.description); }); Read.EdgeCases.c:330:
JR_OBJ(si, { JR_STR_KV(si, "path", obj.path); JR_STR_KV(si, "message", obj.message); JR_STR_KV(si, "data", obj.data); Read.EdgeCases.c:331:
JR_OBJ(si, { JR_STR_KV(si, "path", obj.path); JR_STR_KV(si, "message", obj.message); JR_STR_KV(si, "data", obj.data); }); Read.EdgeCases.c:332:
JR_STR_KV(si, "path", obj.path); JR_STR_KV(si, "message", obj.message); JR_STR_KV(si, "data", obj.data); }); Read.EdgeCases.c:372:
JR_OBJ(si, { JR_STR_KV(si, "escaped", obj.escaped); JR_STR_KV(si, "backslash", obj.backslash); JR_STR_KV(si, "newline", obj.newline); Read.EdgeCases.c:373:
JR_OBJ(si, { JR_STR_KV(si, "escaped", obj.escaped); JR_STR_KV(si, "backslash", obj.backslash); JR_STR_KV(si, "newline", obj.newline); JR_STR_KV(si, "tab", obj.tab); Read.EdgeCases.c:374:
JR_STR_KV(si, "escaped", obj.escaped); JR_STR_KV(si, "backslash", obj.backslash); JR_STR_KV(si, "newline", obj.newline); JR_STR_KV(si, "tab", obj.tab); }); Read.EdgeCases.c:375:
JR_STR_KV(si, "backslash", obj.backslash); JR_STR_KV(si, "newline", obj.newline); JR_STR_KV(si, "tab", obj.tab); }); Read.EdgeCases.c:416:
JR_OBJ(si, { JR_STR_KV(si, "name", obj.name); JR_INT_KV(si, "value", obj.value); JR_BOOL_KV(si, "flag", obj.flag); RoundTrip.c:122:
JR_FLT_KV(si, "temperature", parsed.temperature); JR_BOOL_KV(si, "enabled", parsed.enabled); JR_STR_KV(si, "message", parsed.message); }); RoundTrip.c:316:
StrIter si = StrIterFromStr(json); JR_OBJ(si, { JR_STR_KV(si, "empty", parsed.empty); JR_STR_KV(si, "simple", parsed.simple); JR_STR_KV(si, "with_spaces", parsed.with_spaces); RoundTrip.c:317:
JR_OBJ(si, { JR_STR_KV(si, "empty", parsed.empty); JR_STR_KV(si, "simple", parsed.simple); JR_STR_KV(si, "with_spaces", parsed.with_spaces); JR_STR_KV(si, "with_special", parsed.with_special); RoundTrip.c:318:
JR_STR_KV(si, "empty", parsed.empty); JR_STR_KV(si, "simple", parsed.simple); JR_STR_KV(si, "with_spaces", parsed.with_spaces); JR_STR_KV(si, "with_special", parsed.with_special); }); RoundTrip.c:319:
JR_STR_KV(si, "simple", parsed.simple); JR_STR_KV(si, "with_spaces", parsed.with_spaces); JR_STR_KV(si, "with_special", parsed.with_special); }); RoundTrip.c:476:
JR_OBJ_KV(si, "user", { JR_INT_KV(si, "id", parsed_person.id); JR_STR_KV(si, "name", parsed_person.name); JR_INT_KV(si, "age", parsed_person.age); JR_BOOL_KV(si, "is_active", parsed_person.is_active); RoundTrip.c:572:
JR_OBJ_KV(si, "user", { JR_INT_KV(si, "id", parsed.user.id); JR_STR_KV(si, "name", parsed.user.name); JR_INT_KV(si, "age", parsed.user.age); JR_BOOL_KV(si, "is_active", parsed.user.is_active); RoundTrip.c:580:
JR_BOOL_KV(si, "debug_mode", parsed.config.debug_mode); JR_INT_KV(si, "timeout", parsed.config.timeout); JR_STR_KV(si, "log_level", parsed.config.log_level); JR_ARR_KV(si, "features", { Str feature = StrInit(); RoundTrip.c:675:
StrIter si = StrIterFromStr(json); JR_OBJ(si, { JR_STR_KV(si, "empty_string", parsed_str); JR_ARR_KV(si, "empty_numbers", { i32 num = 0; Read.Nested.c:142:
JR_OBJ(si, { JR_INT_KV(si, "id", data.id); JR_STR_KV(si, "name", data.name); JR_BOOL_KV(si, "active", data.active); JR_FLT_KV(si, "score", data.score); Read.Nested.c:204:
JR_INT_KV(si, "id", data.user.id); JR_OBJ_KV(si, "profile", { JR_STR_KV(si, "name", data.user.profile.name); JR_INT_KV(si, "age", data.user.profile.age); }); Read.Nested.c:208:
}); }); JR_STR_KV(si, "status", data.status); }); Read.Nested.c:275:
JR_OBJ_KV(si, "departments", { JR_OBJ_KV(si, "engineering", { JR_STR_KV(si, "head", data.company.departments.engineering.head); JR_INT_KV(si, "count", data.company.departments.engineering.count); JR_FLT_KV(si, "budget", data.company.departments.engineering.budget); Read.Nested.c:280:
}); }); JR_STR_KV(si, "name", data.company.name); }); }); Read.Nested.c:357:
JR_OBJ(si, { JR_FLT_KV(si, "distance", sym.distance); JR_STR_KV(si, "name", sym.function_name); }); Read.Nested.c:440:
JR_OBJ(si, { JR_BOOL_KV(si, "status", response.status); JR_STR_KV(si, "message", response.message); if (response.status) { Read.Nested.c:459:
JR_INT_KV(si, "nearest_neighbor_analysis_id", sym.analysis_id); JR_INT_KV(si, "nearest_neighbor_binary_id", sym.binary_id); JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); Read.Nested.c:460:
JR_INT_KV(si, "nearest_neighbor_binary_id", sym.binary_id); JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); Read.Nested.c:461:
JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); JR_STR_KV(si, "nearest_neighbor_function_name_mangled", sym.function_mangled_name); Read.Nested.c:463:
JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); JR_STR_KV(si, "nearest_neighbor_function_name_mangled", sym.function_mangled_name); }); Read.Nested.c:583:
JR_OBJ(si, { JR_INT_KV(si, "id", info.id); JR_STR_KV(si, "name", info.name); JR_INT_KV(si, "size", info.size); JR_INT_KV(si, "vaddr", info.vaddr); Read.Nested.c:630:
JR_OBJ(si, { JR_INT_KV(si, "id", info.id); JR_STR_KV(si, "name", info.name); }); Read.Nested.c:673:
JR_OBJ(si, { JR_INT_KV(si, "binary_id", result.binary_id); JR_STR_KV(si, "binary_name", result.binary_name); JR_INT_KV(si, "analysis_id", result.analysis_id); JR_STR_KV(si, "sha256", result.sha256); Read.Nested.c:675:
JR_STR_KV(si, "binary_name", result.binary_name); JR_INT_KV(si, "analysis_id", result.analysis_id); JR_STR_KV(si, "sha256", result.sha256); JR_STR_KV(si, "created_at", result.created_at); JR_INT_KV(si, "model_id", result.model_id); Read.Nested.c:676:
JR_INT_KV(si, "analysis_id", result.analysis_id); JR_STR_KV(si, "sha256", result.sha256); JR_STR_KV(si, "created_at", result.created_at); JR_INT_KV(si, "model_id", result.model_id); JR_STR_KV(si, "model_name", result.model_name); Read.Nested.c:678:
JR_STR_KV(si, "created_at", result.created_at); JR_INT_KV(si, "model_id", result.model_id); JR_STR_KV(si, "model_name", result.model_name); JR_STR_KV(si, "owned_by", result.owned_by); }); Read.Nested.c:679:
JR_INT_KV(si, "model_id", result.model_id); JR_STR_KV(si, "model_name", result.model_name); JR_STR_KV(si, "owned_by", result.owned_by); }); Read.Nested.c:758:
JR_OBJ(si, { JR_BOOL_KV(si, "status", response.status); JR_STR_KV(si, "message", response.message); printf("[DEBUG] Parsed status: %s, message: '", response.status ? "true" : "false"); Read.Nested.c:787:
JR_INT_KV(si, "nearest_neighbor_analysis_id", sym.analysis_id); JR_INT_KV(si, "nearest_neighbor_binary_id", sym.binary_id); JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); Read.Nested.c:788:
JR_INT_KV(si, "nearest_neighbor_binary_id", sym.binary_id); JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); Read.Nested.c:789:

    JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); JR_STR_KV(si, "nearest_neighbor_function_name_mangled", sym.function_mangled_name); Read.Nested.c:791:

    JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); JR_STR_KV(si, "nearest_neighbor_function_name_mangled", sym.function_mangled_name); }); Read.Nested.c:927:    JR_OBJ(si, { JR_BOOL_KV(si, "status", response.status); JR_STR_KV(si, "message", response.message);

printf("[DEBUG] Parsed status: %s, message: '", response.status ? "true" : "false"); Read.Nested.c:956:    JR_INT_KV(si, "nearest_neighbor_analysis_id", sym.analysis_id); JR_INT_KV(si, "nearest_neighbor_binary_id", sym.binary_id); JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); Read.Nested.c:957:    JR_INT_KV(si, "nearest_neighbor_binary_id", sym.binary_id); JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); Read.Nested.c:958:    JR_STR_KV(si, "nearest_neighbor_analysis_name", sym.analysis_name); JR_STR_KV(si, "nearest_neighbor_function_name", sym.function_name); JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); JR_STR_KV(si, "nearest_neighbor_function_name_mangled", sym.function_mangled_name); Read.Nested.c:960:    JR_STR_KV(si, "nearest_neighbor_sha_256_hash", sym.sha256); JR_BOOL_KV(si, "nearest_neighbor_debug", sym.debug); JR_STR_KV(si, "nearest_neighbor_function_name_mangled", sym.function_mangled_name); });
Tags :
JSON
Macro
Reader
String
Key value
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JR_STR_KV

`JR_STR_KV`

Description

Parameters

Usage example (from documentation)

Success

Failure

Usage example (Cross-references)

`Tags :`

`Share :`

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`JReadString`

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`JR_STR`