Scanner

Scanner 速くはないが遅くもない printf/scanfよりちょっと遅いくらい？

class Scanner {

import std.stdio : File;;

import std.conv : to;;

import std.range : front, popFront, array, ElementType;;

import std.range : front, popFront, array, ElementType;;

import std.range : front, popFront, array, ElementType;;

import std.range : front, popFront, array, ElementType;;

import std.array : split;;

import std.traits : isSomeChar, isStaticArray, isArray;;

import std.traits : isSomeChar, isStaticArray, isArray;;

import std.traits : isSomeChar, isStaticArray, isArray;;

import std.algorithm : map;;

char[512] lineBuf;

int read(T x, Args args);

}

Constructors

this this(File f): Undocumented in source.

Members

Functions

read int read(T x, Args args): Undocumented in source. Be warned that the author may not have intended to support it.

Variables

f File f;: Undocumented in source.
line char[] line;: Undocumented in source.
lineBuf char[512] lineBuf;: Undocumented in source.

Examples

import std.path : buildPath;
import std.file : tempDir;
import std.algorithm : equal;
import std.stdio : File;
string fileName = buildPath(tempDir, "kyuridenanmaida.txt");
auto fout = File(fileName, "w");
fout.writeln("1 2 3");
fout.writeln("ab cde");
fout.writeln("1.0 1.0 2.0");
fout.close;
Scanner sc = new Scanner(File(fileName, "r"));
int a;
int[2] b;
char[2] c;
string d;
double e;
double[] f;
sc.read(a, b, c, d, e, f);
assert(a == 1);
assert(equal(b[], [2, 3])); // 配列型は行末まで読み込む
assert(equal(c[], "ab")); // char型配列はトークンをそのまま返す
assert(equal(d, "cde")); // stringもchar型配列と同様
assert(e == 1.0); // 小数も可
assert(equal(f, [1.0, 2.0]));
assert(sc.read(a) == 0); // EOF

Meta

Source

See Implementation

dkh scanner classes

Scanner