While 'most suitable' depends on specific objectives, try script classification by ranking.Ranking that is based on conformance to textual contexts rooted in measures such as:Jensen-Shannon divergence.An approach ported from DNA segmentations based on coded and uncoded region of a DNA string.

Thak you for your response. I nee operational tools to be used directly for tasks like POS taging where words have many attributes (genre, number, etc.). Is there any generic software?

CRF++ (http://taku910.github.io/crfpp/) is an open source implementation of Conditional Random Fields (CRFs) for segmenting/labeling sequential data. Easy to use and with examples. It can be useful for you 

For HMM algorithm, you can use HTK (HMM tool Kit). HTK can do automatic segmentation and labeling.