Refactor the dictionary file parser

[codecov[bot]]

Codecov Report

Attention: 21 lines in your changes are missing coverage. Please review.

Comparison is base (1096cf4) 74.86% compared to head (109f8f1) 75.71%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #78 +/- ## ========================================== + Coverage 74.86% 75.71% +0.84% ========================================== Files 24 25 +1 Lines 3235 3290 +55 ========================================== + Hits 2422 2491 +69 + Misses 813 799 -14 ``` | [Files](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots) | Coverage Δ | | |---|---|---| | [zspell/src/affix.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9hZmZpeC5ycw==) | `71.49% <100.00%> (+2.19%)` | :arrow_up: | | [zspell/src/affix/node.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9hZmZpeC9ub2RlLnJz) | `40.00% <ø> (ø)` | | | [zspell/src/affix/parse.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9hZmZpeC9wYXJzZS5ycw==) | `91.64% <100.00%> (ø)` | | | [zspell/src/dict/parse.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9kaWN0L3BhcnNlLnJz) | `100.00% <100.00%> (ø)` | | | [zspell/src/dict/tests\_parse.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9kaWN0L3Rlc3RzX3BhcnNlLnJz) | `100.00% <100.00%> (ø)` | | | [zspell/src/dict/tests\_rule.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9kaWN0L3Rlc3RzX3J1bGUucnM=) | `100.00% <ø> (ø)` | | | [zspell/src/dict/util.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9kaWN0L3V0aWwucnM=) | `100.00% <100.00%> (ø)` | | | [zspell/src/error.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9lcnJvci5ycw==) | `21.50% <100.00%> (ø)` | | | [zspell/src/morph.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3NyYy9tb3JwaC5ycw==) | `72.83% <100.00%> (ø)` | | | [zspell/test-util/src/lib.rs](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots#diff-enNwZWxsL3Rlc3QtdXRpbC9zcmMvbGliLnJz) | `73.83% <100.00%> (+0.16%)` | :arrow_up: | | ... and [7 more](https://app.codecov.io/gh/pluots/zspell/pull/78?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pluots) | |

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