| 21 | * @returns {Builder} |
| 22 | */ |
| 23 | export class Builder { |
| 24 | private readonly oldLen: number; |
| 25 | private assem: SmartOpAssembler; |
| 26 | private readonly o: Op; |
| 27 | private charBank: StringAssembler; |
| 28 | |
| 29 | constructor(oldLen: number) { |
| 30 | this.oldLen = oldLen |
| 31 | this.assem = new SmartOpAssembler() |
| 32 | this.o = new Op() |
| 33 | this.charBank = new StringAssembler() |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * @param {number} N - Number of characters to keep. |
| 38 | * @param {number} L - Number of newlines among the `N` characters. If positive, the last |
| 39 | * character must be a newline. |
| 40 | * @param {(string|Attribute[])} attribs - Either [[key1,value1],[key2,value2],...] or '*0*1...' |
| 41 | * (no pool needed in latter case). |
| 42 | * @param {?AttributePool.ts} pool - Attribute pool, only required if `attribs` is a list of |
| 43 | * attribute key, value pairs. |
| 44 | * @returns {Builder} this |
| 45 | */ |
| 46 | keep = (N: number, L?: number, attribs?: string|Attribute[], pool?: AttributePool): Builder => { |
| 47 | this.o.opcode = '='; |
| 48 | this.o.attribs = typeof attribs === 'string' |
| 49 | ? attribs : new AttributeMap(pool).update(attribs || []).toString(); |
| 50 | this.o.chars = N; |
| 51 | this.o.lines = (L || 0); |
| 52 | this.assem.append(this.o); |
| 53 | return this; |
| 54 | } |
| 55 | |
| 56 | |
| 57 | /** |
| 58 | * @param {string} text - Text to keep. |
| 59 | * @param {(string|Attribute[])} attribs - Either [[key1,value1],[key2,value2],...] or '*0*1...' |
| 60 | * (no pool needed in latter case). |
| 61 | * @param {?AttributePool.ts} pool - Attribute pool, only required if `attribs` is a list of |
| 62 | * attribute key, value pairs. |
| 63 | * @returns {Builder} this |
| 64 | */ |
| 65 | keepText= (text: string, attribs?: string|Attribute[], pool?: AttributePool): Builder=> { |
| 66 | for (const op of opsFromText('=', text, attribs, pool)) this.assem.append(op); |
| 67 | return this; |
| 68 | } |
| 69 | |
| 70 | |
| 71 | /** |
| 72 | * @param {string} text - Text to insert. |
| 73 | * @param {(string|Attribute[])} attribs - Either [[key1,value1],[key2,value2],...] or '*0*1...' |
| 74 | * (no pool needed in latter case). |
| 75 | * @param {?AttributePool.ts} pool - Attribute pool, only required if `attribs` is a list of |
| 76 | * attribute key, value pairs. |
| 77 | * @returns {Builder} this |
| 78 | */ |
| 79 | insert= (text: string, attribs: string | Attribute[] | undefined, pool?: AttributePool | null | undefined): Builder => { |
| 80 | for (const op of opsFromText('+', text, attribs, pool)) this.assem.append(op); |