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. 2015 Jan 19;7(Suppl 1):S4. doi: 10.1186/1758-2946-7-S1-S4

Table 1.

Symbol tokens included in the tokenizer.

~ • ! @ # $ % ^ & * - = _ + ˉ ( ) [ ] { } ; ' : " , . / < > ×> < ≤ ≥ ↑ ↓ ← →
• ′ ° ~ ≈ ? Δ ÷ ≠ | ‘ ’ “ ” §£ € \ 0 1 2 3 4 5 6 7 8