重写字符串匹配为 parser #321

Job	Run time
Run integration tests (-DUA2F_NO_CACHE=ON)	1m 24s
Run unit tests	48s
Run integration tests (-DUA2F_NO_CACHE=OFF)	1m 23s
Run unit tests without uci support	42s
Build aarch64_cortex-a53	9m 5s
Build aarch64_cortex-a72	9m 8s
Build aarch64_generic	9m 24s
Build arm_cortex-a7_neon-vfpv4	9m 45s
Build arm_cortex-a9_vfpv3-d16	9m 3s
Build arm_cortex-a15_neon-vfpv4	9m 5s
Build i386_pentium4	9m 30s
Build i386_pentium-mmx	9m 22s
Build mips_24kc	9m 5s
Build mipsel_24kc	8m 56s
Build powerpc_464fp	9m 45s
Build powerpc_8548	9m 4s
Build x86_64	9m 42s
	2h 5m 11s

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