introduce ensure_column and use it for padding account names

korrat

Sep 29, 2022, 4:42 PM

KWGWHKJRMYDMGWRTLTHNM5TM3B7SSZPQFC4XMDWHA2JDSL2FNEQQC

Dependencies

• [2] ND7GASJ4 track current column position when writing
• [3] ONRIF4V7 add basic snapshot test for pretty printer
• [4] QRIJE4AQ add a simple pretty printer for beancount directives

Change contents

• edit in common/beancount-pretty-printer/src/lib.rs at line 141
  [3.4001]

  [3.4001]
  + self.inner.ensure_column(AMOUNT_COLUMN)?;

  +
• edit in common/beancount-pretty-printer/src/lib.rs at line 153
  [3.4326]

  [3.4326]
  +
• replacement in common/beancount-pretty-printer/src/lib.rs at line 164
  [3.4573]→[3.4573:4765](∅→∅)
  − let account_width = if amount.is_some() {

  − AMOUNT_COLUMN - ACCOUNT_COLUMN

  − } else {

  − 0

  − };

  − write!(self.inner, "{account:account_width$}")?;
  [3.4573]

  [3.4765]
  + write!(self.inner, "{account}")?;
• edit in common/beancount-pretty-printer/src/lib.rs at line 195
  [2.295]

  [2.295]
  + impl<W> TrackingWriter<W>

  + where

  + W: Write,

  + {

  + fn ensure_column(&mut self, target: usize) -> Result<()> {

  + let shift = target.saturating_sub(self.column);

  +

  + self.inner.write_fmt(format_args!("{:shift$}", ""))

  + }

  + }

  +