add agetline, separate estrtod to util

Signed-off-by: Hiltjo Posthuma <hiltjo@codemadness.org>

Makefile

@@ -7,12 +7,14 @@ HDR = crypt.h fs.h text.h md5.h sha1.h sha256.h sha512.h util.h arg.h
 LIB = \
 	util/afgets.o    \
 	util/agetcwd.o   \
+	util/agetline.o  \
 	util/apathmax.o  \
 	util/concat.o    \
 	util/cp.o        \
 	util/crypt.o     \
 	util/enmasse.o   \
 	util/eprintf.o   \
+	util/estrtod.o   \
 	util/estrtol.o   \
 	util/fnck.o      \
 	util/getlines.o  \

seq.c

@@ -8,7 +8,6 @@
 
 static int digitsleft(const char *);
 static int digitsright(const char *);
-static double estrtod(const char *);
 static bool validfmt(const char *);
 
 static void
@@ -75,7 +74,7 @@ main(int argc, char *argv[])
 			left = MAX(digitsleft(starts), digitsleft(ends));
 
 			snprintf(ftmp, sizeof ftmp, "%%0%d.%df",
-					right+left+(right != 0), right);
+					right + left + (right != 0), right);
 		} else
 			snprintf(ftmp, sizeof ftmp, "%%.%df", right);
 	}
@@ -89,7 +88,7 @@ main(int argc, char *argv[])
 	return EXIT_SUCCESS;
 }
 
-int
+static int
 digitsleft(const char *d)
 {
 	char *exp;
@@ -100,10 +99,10 @@ digitsleft(const char *d)
 	exp = strpbrk(d, "eE");
 	shift = exp ? estrtol(&exp[1], 10) : 0;
 
-	return MAX(0, strspn(d, "-0123456789")+shift);
+	return MAX(0, strspn(d, "-0123456789") + shift);
 }
 
-int
+static int
 digitsright(const char *d)
 {
 	char *exp;
@@ -113,22 +112,10 @@ digitsright(const char *d)
 	shift = exp ? estrtol(&exp[1], 10) : 0;
 	after = (d = strchr(d, '.')) ? strspn(&d[1], "0123456789") : 0;
 
-	return MAX(0, after-shift);
+	return MAX(0, after - shift);
 }
 
-double
-estrtod(const char *s)
-{
-	char *end;
-	double d;
-
-	d = strtod(s, &end);
-	if(end == s || *end != '\0')
-		eprintf("%s: not a real number\n", s);
-	return d;
-}
-
-bool
+static bool
 validfmt(const char *fmt)
 {
 	int occur = 0;
@@ -164,4 +151,3 @@ format:
 		return false;
 	}
 }
-

text.h

@@ -9,4 +9,5 @@ struct linebuf {
 void getlines(FILE *, struct linebuf *);
 
 char *afgets(char **, size_t *, FILE *);
+ssize_t agetline(char **, size_t *, FILE *);
 void concat(FILE *, const char *, FILE *, const char *);

util.h

@@ -17,6 +17,7 @@ void apathmax(char **, long *);
 void enmasse(int, char **, int (*)(const char *, const char *));
 void eprintf(const char *, ...);
 void enprintf(int, const char *, ...);
+double estrtod(const char *);
 long estrtol(const char *, int);
 void fnck(const char *, const char *, int (*)(const char *, const char *));
 void putword(const char *);

util/agetline.c

@@ -0,0 +1,13 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../text.h"
+#include "../util.h"
+
+ssize_t
+agetline(char **p, size_t *size, FILE *fp)
+{
+	return getline(p, size, fp);
+}

util/estrtod.c

@@ -0,0 +1,18 @@
+/* See LICENSE file for copyright and license details. */
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../util.h"
+
+double
+estrtod(const char *s)
+{
+	char *end;
+	double d;
+
+	d = strtod(s, &end);
+	if(end == s || *end != '\0')
+		eprintf("%s: not a real number\n", s);
+	return d;
+}