110 lines
2.9 KiB
PHP
110 lines
2.9 KiB
PHP
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<?php
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namespace nur\b\io;
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use nur\out;
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trait Twriter {
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function isatty(): bool {
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$resource = $this->getResource();
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return $resource !== null && stream_isatty($resource);
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}
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/** @var int */
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private $indentLevel = 0;
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/** @var string */
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private $indentString = out::INDENT_STRING;
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/** réinitialiser l'indentation */
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function resetIndent(?int $indentLevel=0, ?string $indentString=null): void {
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if ($indentLevel !== null) $this->indentLevel = $indentLevel;
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if ($indentString !== null) $this->indentString = $indentString;
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}
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/** augmenter le niveau d'indentation et retourner le niveau précédent */
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function indent(): int {
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$indentLevel = $this->indentLevel;
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$this->indentLevel++;
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return $indentLevel;
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}
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/** diminuer le niveau d'indentation */
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function dedent(): void {
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if ($this->indentLevel > 0) $this->indentLevel--;
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}
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protected function getIndent(): string {
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return str_repeat($this->indentString, $this->indentLevel);
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}
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private function _Twriter__filterValues(array $values): array {
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$nzs = [];
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foreach ($values as $value) {
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if ($value !== null && $value !== false) {
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$nzs[] = $value;
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}
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}
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return $nzs;
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}
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private function _Twriter__indentLines(string $lines, bool $haveNl): string {
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if ($haveNl) $lines = substr($lines, 0, -1);
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$lines = str_replace("\n", "\n".$this->getIndent(), $lines);
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if ($haveNl) $lines .= "\n";
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return $lines;
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}
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/** @var bool faut-il afficher une indentation avant la ligne courante? */
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private $indent = true;
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protected function indentLines(string $lines, bool $updateIndent=true): string {
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if ($this->indentLevel > 0) {
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if ($this->indent) $lines = $this->getIndent().$lines;
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$haveNl = substr($lines, -1) === "\n";
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$lines = $this->_Twriter__indentLines($lines, $haveNl);
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if ($updateIndent) $this->indent = $haveNl;
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}
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return $lines;
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}
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function toString(string $sep, array $values, bool $updateIndent=true): string {
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$lines = implode($sep, $this->_Twriter__filterValues($values));
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$lines = $this->indentLines($lines, $updateIndent);
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return $lines;
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}
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function write(...$values): IWriter {
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$this->_write($this->toString("", $values));
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return $this;
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}
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function wnl(...$values): IWriter {
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$this->_write($this->toString("", $values));
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$this->_write("\n");
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$this->indent = true;
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return $this;
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}
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function print(...$values): IWriter {
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$this->_write($this->toString(" ", $values));
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return $this;
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}
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function pnl(...$values): IWriter {
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$this->_write($this->toString(" ", $values));
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$this->_write("\n");
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$this->indent = true;
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return $this;
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}
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function writeLines(?iterable $lines): IWriter {
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if ($lines !== null) {
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foreach ($lines as $line) {
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$this->_write($this->indentLines($line));
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$this->_write("\n");
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}
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}
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return $this;
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}
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}
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