stew

commit 08ee99629d7750bf3811d2e7f9f8907be149ac4a
parent 3dfb21a9b25123a0f525c4bfb81630980717fff0
Author: rpa <rpa@grass>
Date:   Sat, 18 Nov 2023 20:50:22 +0000

src/json: a formatter

Diffstat:
A
src/json/fmt.c
 | 
51
+++++++++++++++++++++++++++++++++++++++++++++++++++
A
src/json/mkfile
 | 
11
+++++++++++

2 files changed, 62 insertions(+), 0 deletions(-)
diff --git a/src/json/fmt.c b/src/json/fmt.c
@@ -0,0 +1,51 @@
+/* read json, print pretty json */
+#include <u.h>
+#include <libc.h>
+#include <json.h>
+
+#define RBUFSIZE 8192
+
+typedef struct Rbuf Rbuf;
+struct Rbuf {
+	char buf[RBUFSIZE];
+	int n;
+	Rbuf *next;
+};
+
+void
+usage(void)
+{
+	fprint(2, "%s takes no arguments\n", argv0);
+	exits("usage");
+}
+
+void
+main(int argc, char **argv)
+{
+	argv0 = argv[0];
+	if (argc != 1) usage();
+
+	Rbuf *start = mallocz(sizeof(Rbuf), 1);
+	Rbuf *rpt = start;
+	int total = 0, n;
+	while ((n = read(0, rpt->buf, RBUFSIZE)) > 0) {
+		fprint(2, "%d\n", n);
+		rpt->n = n;
+		total += n;
+		rpt->next = mallocz(sizeof(Rbuf), 1);
+		rpt=rpt->next;
+	}
+	fprint(2, "total %d\n", total);
+	rpt = start;
+	char *buf = mallocz(total+1, 1);
+	n = 0;
+	while (rpt != nil) {
+		memcpy(buf+n, rpt->buf, rpt->n);
+		n += rpt->n;
+		rpt=rpt->next;
+	}
+	JSON *j = jsonparse(buf);
+	if (j == nil) sysfatal("%r");
+	JSONfmtinstall();
+	print("%J\n", j);
+}
diff --git a/src/json/mkfile b/src/json/mkfile
@@ -0,0 +1,11 @@
+</$objtype/mkfile
+BIN=/$objtype/bin/json
+TARG=fmt
+OFILES=fmt.$O
+
+install:V: installdir
+
+installdir:V:
+	mkdir -p $BIN
+
+</sys/src/cmd/mkone