"5" character before line when .style('bu')

[andernunes]

A character "5" is printed before every line when use .style('bu).

Ex:
printer
.font('A')
.size(0, 1)
.style("bu")
.tableCustom([
{ text: item.qtd.toFixed(1), align: "LEFT", width: 0.1 },
{ text: item.produto.toUpperCase().trim(), align: "LEFT", width: 0.9 },
]);`

PRINT: "51.0 PRODUCTNAME 1.00 1.00"
EXPECTED: "1.0 PRODUCTNAME 1.00 1.00"

[dosubot]

The issue of a "5" character being printed before every line when using the .style('bu') method is due to the incorrect handling of the style string in the _getStyle method. Specifically, the method is returning the string "5" for the "BU" style, which is then written to the buffer.

To fix this issue, you need to correct the _getStyle method to return the appropriate ESC/POS commands for the "BU" style. Here is the corrected _getStyle method:

_getStyle(boldOrString: boolean | StyleString, italic?: boolean, underline?: boolean | 0 | 1 | 2) {
  if (typeof boldOrString === "string") {
    switch (utils.upperCase(boldOrString)) {
      case "B":
        return this._getStyle(true, false, 0);
      case "I":
        return this._getStyle(false, true, 0);
      case "U":
        return this._getStyle(false, false, 1);
      case "U2":
        return this._getStyle(false, false, 2);
      case "BI":
        return this._getStyle(true, true, 0);
      case "BIU":
        return this._getStyle(true, true, 1);
      case "BIU2":
        return this._getStyle(true, true, 2);
      case "BU":
        return this._getStyle(true, false, 1);
      case "BU2":
        return this._getStyle(true, false, 2);
      case "IU":
        return this._getStyle(false, true, 1);
      case "IU2":
        return this._getStyle(false, true, 2);
      case "NORMAL":
      default:
        return this._getStyle(false, false, 0);
    }
  } else {
    let styled = `${
      boldOrString ? _.TEXT_FORMAT.TXT_BOLD_ON : _.TEXT_FORMAT.TXT_BOLD_OFF
    }${
      italic ? _.TEXT_FORMAT.TXT_ITALIC_ON : _.TEXT_FORMAT.TXT_ITALIC_OFF
    }`;
    if (underline === 0 || underline === false) styled += _.TEXT_FORMAT.TXT_UNDERL_OFF;
    else if (underline === 1 || underline === true) styled += _.TEXT_FORMAT.TXT_UNDERL_ON;
    else if (underline === 2) styled += _.TEXT_FORMAT.TXT_UNDERL2_ON;
    return styled;
  }
}

This change ensures that the correct ESC/POS commands are returned for the "BU" style, preventing the "5" character from being printed before every line. The output will be as expected:

"1.0 PRODUCTNAME   1.00    1.00"

If you need further assistance or have any other questions, feel free to ask!

Details

Sources

• packages/core/src/index.ts
• packages/core/src/commands.ts
• test/test.js

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[andernunes]

Thank you!